Seth Weaver
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EMT-B EMT Quiz on EMT 14, created by Seth Weaver on 09/06/2018.

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Seth Weaver
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EMT 14

Question 1 of 88

1

A 40-year-old man is in cardiac arrest. Your partner is performing CPR. You are attaching the AED when the patient's wife tells you that he has an automatic implanted cardiac defibrillator (AICD). The AED advises that a shock is indicated. What should you do?

Select one of the following:

  • Avoid defibrillation as this will damage the patient's AICD.

  • Contact medical control and request permission to defibrillate.

  • Deliver the shock followed by immediate resumption of CPR.

  • Continue CPR and transport the patient to the closest appropriate hospital.

Explanation

Question 2 of 88

1

A 49-year-old male presents with an acute onset of crushing chest pain and diaphoresis. You should:

Select one of the following:

  • administer up to 324 mg of baby aspirin.

  • administer up to three doses of nitroglycerin.

  • obtain vital signs and a SAMPLE history.

  • assess the adequacy of his respirations.

Explanation

Question 3 of 88

1

A 66-year-old female with a history of hypertension and diabetes presents with substernal chest pressure of 2 hours' duration. Her blood pressure is 140/90 mm Hg, her pulse is 100 beats/min and irregular, and her respirations are 22 breaths/min with adequate depth. The patient does not have prescribed nitroglycerin, but her husband does. You should:

Select one of the following:

  • administer oxygen, give her 324 mg aspirin, and assess her further

  • obtain a SAMPLE history and contact medical control for advice.

  • give her 100% oxygen, attach the AED, and transport immediately.

  • give her one nitroglycerin and reassess her systolic blood pressure.

Explanation

Question 4 of 88

1

cA 66-year-old woman presents with a stabbing pain in the middle of her chest that radiates to her back. She tells you that the pain suddenly began about 30 minutes ago and has been severe since the onset. She has a history of hypertension, but admits to being noncompliant with her antihypertensive medications. When you assess her, you find that her blood pressure is significantly higher in her left arm than it is in her right arm. What are her signs and symptoms MOST indicative of?

Select one of the following:

  • dissecting aortic aneurysm

  • unstable angina

  • AMI

  • hypertensive emergency

Explanation

Question 5 of 88

1

A 67-year-old female presents with difficulty breathing and chest discomfort that awakened her from her sleep. She states that she has congestive heart failure, has had two previous heart attacks, and has prescribed nitroglycerin. She is conscious and alert with adequate breathing. Her blood pressure is 94/64 mm Hg and her heart rate is 120 beats/min. Treatment for this patient includes:

Select one of the following:

  • nitroglycerin for her chest pain.

  • ventilations with a bag-mask device.

  • oxygen at 4 L/min via nasal cannula.

  • placing her in an upright position.

Explanation

Question 6 of 88

1

A 67-year-old female with severe chest pain becomes unresponsive, pulseless, and apneic during transport. You should:

Select one of the following:

  • defibrillate with the AED while continuing transport to the hospital.

  • stop the ambulance, begin CPR, and attach the AED as soon as possible.

  • perform CPR for 1 to 2 minutes and then analyze her rhythm with an AED.

  • alert the receiving hospital and perform CPR for the duration of the transport.

Explanation

Question 7 of 88

1

A dissecting aortic aneurysm occurs when:

Select one of the following:

  • all layers of the aorta suddenly contract.

  • a weakened area develops in the aortic wall.

  • the inner layers of the aorta become separated.

  • the aorta ruptures, resulting in profound bleeding.

Explanation

Question 8 of 88

1

A patient with atherosclerotic heart disease experiences chest pain during exertion because the:

Select one of the following:

  • coronary arteries suddenly spasm and cause a marked reduction in myocardial blood flow.

  • lumen of the coronary artery is narrowed and cannot accommodate increased blood flow.

  • tissues of the myocardium undergo necrosis secondary to a prolonged absence of oxygen.

  • ragged edge of a tear in the coronary artery lumen causes local blood clotting and arterial narrowing.

Explanation

Question 9 of 88

1

A percutaneous transluminal coronary angioplasty (PTCA) restores blood flow to the ischemic myocardium by:

Select one of the following:

  • scraping fatty deposits off of the lumen of the coronary artery.

  • bypassing the coronary artery with a vessel from the chest or leg.

  • placing a stent inside the coronary artery to keep it from narrowing.

  • dilating the affected coronary artery with a small inflatable balloon

Explanation

Question 10 of 88

1

Acute coronary syndrome (ACS) is a term used to describe:

Select one of the following:

  • the warning signs that occur shortly before a heart attack.

  • a group of symptoms that are caused by myocardial ischemia.

  • a severe decrease in perfusion caused by changes in heart rate.

  • the exact moment that a coronary artery is completely occluded.

Explanation

Question 11 of 88

1

After assisting your patient with his or her nitroglycerin, you should:

Select one of the following:

  • place the patient in a recumbent position in case he or she faints.

  • reassess the blood pressure within 5 minutes to detect hypotension.

  • avoid further dosing if the patient complains of a severe headache.

  • perform a secondary assessment before administering further doses.

Explanation

Question 12 of 88

1

After the AED has delivered a shock, the EMT should:

Select one of the following:

  • assess for a carotid pulse.

  • immediately resume CPR.

  • reanalyze the cardiac rhythm.

  • transport the patient at once.

Explanation

Question 13 of 88

1

An acute myocardial infarction (AMI) occurs when:

Select one of the following:

  • myocardial tissue dies secondary to an absence of oxygen.

  • the heart muscle progressively weakens and dysfunctions.

  • coronary artery dilation decreases blood flow to the heart.

  • the entire left ventricle is damaged and cannot pump blood.

Explanation

Question 14 of 88

1

Angina pectoris occurs when:

Select one of the following:

  • a coronary artery is totally occluded by plaque.

  • myocardial oxygen demand exceeds the supply.

  • one or more coronary arteries suddenly spasm.

  • myocardial oxygen supply exceeds the demand.

Explanation

Question 15 of 88

1

Blood that is ejected from the right ventricle:

Select one of the following:

  • enters the systemic circulation.

  • flows into the pulmonary arteries.

  • has a high concentration of oxygen.

  • was received directly from the aorta.

Explanation

Question 16 of 88

1

Cardiac output may decrease if the heart beats too rapidly because

Select one of the following:

  • a rapid heart beat causes a decrease in the strength of cardiac contractions.

  • the volume of blood that returns to the heart is not sufficient with fast heart rates.

  • as the heart rate increases, more blood is pumped from the ventricles than the atria.

  • there is not enough time in between contractions for the heart to refill completely.

Explanation

Question 17 of 88

1

Cardiogenic shock following AMI is caused by:

Select one of the following:

  • decreased pumping force of the heart muscle.

  • a profound increase in the patient's heart rate.

  • hypovolemia secondary to severe vomiting.

  • widespread dilation of the systemic vasculature.

Explanation

Question 18 of 88

1

Common side effects of nitroglycerin include all of the following, EXCEPT:

Select one of the following:

  • bradycardia.

  • hypertension.

  • hypotension.

  • severe headache.

Explanation

Question 19 of 88

1

Common signs and symptoms of a hypertensive emergency include:

Select one of the following:

  • pallor, cool skin, and a temporary loss of hearing.

  • syncope, a weak pulse, and bleeding from the ears.

  • tachycardia, pain behind the eyes, and weakness.

  • a bounding pulse, a severe headache, and dizziness.

Explanation

Question 20 of 88

1

Common signs and symptoms of AMI include all of the following, EXCEPT:

Select one of the following:

  • irregular heartbeat.

  • sudden unexplained sweating.

  • pain exacerbated by breathing.

  • shortness of breath or dyspnea.

Explanation

Question 21 of 88

1

Defibrillator pads are placed on the patient's chest with one pad to the:

Select one of the following:

  • left of the upper sternum and the other pad just to the right of the left nipple.

  • right of the upper sternum and the other pad just to the right of the right nipple.

  • left of the upper sternum and the other pad just to the right and below the left nipple.

  • right of the upper sternum and the other pad just to the left and below the left nipple.

Explanation

Question 22 of 88

1

Deoxygenated blood from the body returns to the:

Select one of the following:

  • right atrium.

  • right ventricle.

  • left atrium.

  • left ventricle.

Explanation

Question 23 of 88

1

During your treatment of a woman in cardiac arrest, you apply the AED, analyze her cardiac rhythm, and receive a “no shock advised” message. This indicates that:

Select one of the following:

  • the AED has detected asystole.

  • the AED detected patient motion.

  • she is not in ventricular fibrillation.

  • she has a pulse and does not need CPR.

Explanation

Question 24 of 88

1

In contrast to AMI, a dissecting aortic aneurysm:

Select one of the following:

  • is more commonly associated with pressure in the chest.

  • often presents with pain that is maximal from the onset.

  • usually presents gradually, often over a period of hours.

  • is typically preceded by other symptoms, such as nausea.

Explanation

Question 25 of 88

1

In contrast to monophasic defibrillation, biphasic defibrillation:

Select one of the following:

  • requires a lower energy setting.

  • delivers all shocks at 360 joules.

  • begins with 300 joules and escalates.

  • is only effective for ventricular tachycardia.

Explanation

Question 26 of 88

1

In contrast to the sympathetic nervous system, the parasympathetic nervous system:

Select one of the following:

  • prepares the body to handle stress.

  • causes an increase in the heart rate.

  • slows the heart and respiratory rates.

  • dilates the blood vessels in the muscles.

Explanation

Question 27 of 88

1

Ischemic heart disease is MOST accurately defined as:

Select one of the following:

  • absent myocardial blood flow due to a blocked coronary artery.

  • decreased blood flow to one or more portions of the myocardium.

  • death of a portion of the heart muscle due to a decrease in oxygen.

  • decreased blood flow to the heart muscle due to coronary dilation.

Explanation

Question 28 of 88

1

Major risk factors for AMI include all of the following, EXCEPT:

Select one of the following:

  • hypoglycemia.

  • hypertension.

  • diabetes mellitus.

  • elevated cholesterol.

Explanation

Question 29 of 88

1

Most patients are instructed by their physician to take up to _______ doses of nitroglycerin before calling EMS.

Select one of the following:

  • two

  • three

  • four

  • five

Explanation

Question 30 of 88

1

Narrowing of the coronary arteries due to a buildup of fatty deposits is called:

Select one of the following:

  • angina pectoris.

  • arteriosclerosis.

  • acute ischemia.

  • atherosclerosis.

Explanation

Question 31 of 88

1

Nitroglycerin is contraindicated in patients:

Select one of the following:

  • who have taken up to two doses.

  • who have experienced a head injury.

  • with a history of an ischemic stroke.

  • with a systolic blood pressure less than 120 mm Hg.

Explanation

Question 32 of 88

1

Nitroglycerin relieves cardiac-related chest pain by:

Select one of the following:

  • dilating the coronary arteries and improving cardiac blood flow.

  • increasing the amount of work that is placed on the myocardium.

  • contracting the smooth muscle of the coronary and cerebral arteries.

  • constricting the coronary arteries and improving cardiac blood flow.

Explanation

Question 33 of 88

1

Prior to assisting a patient with his or her prescribed nitroglycerin, the EMT must:

Select one of the following:

  • ensure the medication is in tablet form.

  • obtain authorization from medical control.

  • determine who prescribed the nitroglycerin.

  • wait at least 5 minutes after assessing the blood pressure.

Explanation

Question 34 of 88

1

Prior to attaching the AED to a cardiac arrest patient, the EMT should:

Select one of the following:

  • contact medical control.

  • dry the chest off if it is wet.

  • perform CPR for 30 seconds.

  • assess for a pulse for 20 seconds.

Explanation

Question 35 of 88

1

Prior to defibrillating a patient with an AED, it is MOST important that you:

Select one of the following:

  • properly position the defibrillation pads.

  • perform up to 5 minutes of effective CPR.

  • confirm that the patient is in cardiac arrest.

  • ensure that no one is touching the patient.

Explanation

Question 36 of 88

1

Prompt transport of a patient with a suspected AMI is important because:

Select one of the following:

  • the patient may be eligible to receive thrombolytic therapy.

  • 90% of the cardiac cells will die within the first 30 minutes.

  • nitroglycerin can only be given in the emergency department.

  • many patients with an AMI die within 6 hours.

Explanation

Question 37 of 88

1

Rapid, labored breathing in a patient with signs and symptoms of AMI should make you suspicious for:

Select one of the following:

  • cardiac arrhythmia.

  • congestive heart failure.

  • significant hypotension.

  • right ventricular failure.

Explanation

Question 38 of 88

1

Risk factors for AMI that cannot be controlled include:

Select one of the following:

  • excess stress.

  • hyperglycemia.

  • family history.

  • lack of exercise.

Explanation

Question 39 of 88

1

Signs and symptoms of a hypertensive emergency would MOST likely be delayed in patients who:

Select one of the following:

  • have chronic hypertension.

  • regularly take illegal drugs.

  • have had a stroke in the past.

  • are older than 40 years of age.

Explanation

Question 40 of 88

1

Sudden death following AMI is MOST often caused by:

Select one of the following:

  • cardiogenic shock.

  • severe bradycardia.

  • ventricular fibrillation.

  • congestive heart failure.

Explanation

Question 41 of 88

1

The ability of cardiac muscle cells to contract spontaneously without a stimulus from a nerve source is called:

Select one of the following:

  • excitability.

  • contractility.

  • impulsivity.

  • automaticity.

Explanation

Question 42 of 88

1

The AED has delivered a shock to an elderly male in cardiac arrest. Following 2 minutes of CPR, you reanalyze the patient's cardiac rhythm and receive a “no shock advised” message. After further resuscitation, you restore a palpable carotid pulse. Your next action should be to:

Select one of the following:

  • obtain a blood pressure and apply the pulse oximeter.

  • place him in the recovery position and apply oxygen.

  • transport at once and reanalyze his rhythm en route.

  • reassess airway and breathing and treat accordingly.

Explanation

Question 43 of 88

1

The AED is MOST advantageous to the EMT because:

Select one of the following:

  • it is lightweight, easy to use, and safe for the EMT who is using it.

  • it delivers prompt defibrillation to patients with ventricular fibrillation.

  • its use does not require the presence of ALS personnel.

  • it delivers an unlimited number of shocks with the same amount of energy.

Explanation

Question 44 of 88

1

The descending aorta divides into the two iliac arteries at the level of the:

Select one of the following:

  • nipple line.

  • umbilicus.

  • iliac crest.

  • pubic symphysis.

Explanation

Question 45 of 88

1

The electrical impulse generated by the heart originates in the:

Select one of the following:

  • bundle of His.

  • coronary sinus.

  • sinoatrial (SA) node

  • atrioventricular (AV) node.

Explanation

Question 46 of 88

1

The electrical stimulus that originates in the heart's primary pacemaker is controlled by impulses from the brain that arrive by way of the:

Select one of the following:

  • parietal lobe.

  • pons and medulla.

  • somatic nervous system.

  • autonomic nervous system.

Explanation

Question 47 of 88

1

The EMT should use an AED on a child older than 1 year if:

Select one of the following:

  • he or she is not breathing and has a weakly palpable pulse.

  • his or her condition is rapidly progressing to cardiac arrest.

  • pediatric pads and an energy-reducing device are available.

  • special pads are used and the child has profound tachycardia.

Explanation

Question 48 of 88

1

The head and brain receive their supply of oxygenated blood from the:

Select one of the following:

  • iliac arteries.

  • brachial arteries.

  • carotid arteries.

  • subclavian arteries.

Explanation

Question 49 of 88

1

The iliac arteries immediately subdivide into the:

Select one of the following:

  • femoral arteries.

  • peroneal arteries.

  • anterior tibial arteries.

  • posterior tibial arteries.

Explanation

Question 50 of 88

1

The inferior vena cava returns deoxygenated blood to the right side of the heart from all of the following areas, EXCEPT the:

Select one of the following:

  • brain.

  • kidneys.

  • abdomen.

  • legs.

Explanation

Question 51 of 88

1

The left ventricle has the thickest walls because it:

Select one of the following:

  • pumps blood to the lungs to be reoxygenated.

  • uses less oxygen than other chambers of the heart.

  • pumps blood into the aorta and systemic circulation.

  • receives blood directly from the systemic circulation.

Explanation

Question 52 of 88

1

The main legal risk in using the AED is:

Select one of the following:

  • negligence on the part of the manufacturer.

  • failure of the AED's internal computer chip.

  • failing to deliver a shock when one is needed.

  • not assessing for a pulse after a shock is delivered.

Explanation

Question 53 of 88

1

The MOST common error associated with the use of the AED is:

Select one of the following:

  • failure of the EMT to ensure the battery is charged.

  • malfunction of the AED's internal computer processor.

  • inappropriately placed adhesive defibrillation electrodes.

  • inability of the EMT to recognize ventricular fibrillation.

Explanation

Question 54 of 88

1

The MOST common reason that many people experiencing AMI do not seek immediate medical attention is because they:

Select one of the following:

  • are elderly.

  • are in denial.

  • cannot afford it.

  • do not trust EMTs.

Explanation

Question 55 of 88

1

The myocardium receives oxygenated blood from the __________, which originate(s) from the __________.

Select one of the following:

  • coronary arteries, aorta

  • vena cava, coronary veins

  • aorta, inferior vena cava

  • coronary sinus, vena cava

Explanation

Question 56 of 88

1

The posterior tibial pulse can be palpated:

Select one of the following:

  • on the dorsum of the foot.

  • above the lateral malleolus.

  • in the fossa behind the knee.

  • behind the medial malleolus. Correct

Explanation

Question 57 of 88

1

The purpose of defibrillation is to:

Select one of the following:

  • stop the chaotic, disorganized contraction of the cardiac cells.

  • cause a rapid decrease in the heart rate of an unstable patient.

  • improve the chance of cardiopulmonary resuscitation (CPR) being successful in resuscitation.

  • prevent asystole from deteriorating into ventricular fibrillation.

Explanation

Question 58 of 88

1

The right coronary artery supplies blood to the:

Select one of the following:

  • left ventricle and inferior wall of the right atrium.

  • right ventricle and inferior wall of the left ventricle.

  • right atrium and posterior wall of the right ventricle.

  • left ventricle and posterior wall of the right ventricle.

Explanation

Question 59 of 88

1

Upon arriving at the residence of a patient with a possible cardiac problem, it is MOST important to:

Select one of the following:

  • assess the scene for potential hazards.

  • determine if you need additional help.

  • request a paramedic unit for assistance.

  • gain immediate access to the patient.

Explanation

Question 60 of 88

1

Ventricular tachycardia causes hypotension because:

Select one of the following:

  • the volume of blood returning to the atria increases.

  • the right ventricle does not adequately pump blood.

  • blood backs up into the lungs and causes congestion.

  • the left ventricle does not adequately fill with blood.

Explanation

Question 61 of 88

1

What is the function of the left atrium?

Select one of the following:

  • It ejects oxygenated blood into the aorta.

  • It receives oxygenated blood from the lungs.

  • It receives blood from the pulmonary arteries.

  • It receives oxygenated blood from the vena cava.

Explanation

Question 62 of 88

1

When afterload increases:

Select one of the following:

  • the volume of venous blood that returns to the right atrium increases.

  • the amount of resistance that the ventricle must beat against decreases.

  • it becomes harder for the ventricle to push blood through the blood vessels.

  • the blood pressure falls because of significant dilation of the blood vessels.

Explanation

Question 63 of 88

1

When an electrical impulse reaches the AV node, it is slowed for a brief period of time so that:

Select one of the following:

  • blood can pass from the atria to the ventricle

  • blood returning from the body can fill the atria.

  • the impulse can spread through the Purkinje fibers.

  • the SA node can reset and generate another impulse.

Explanation

Question 64 of 88

1

When documenting a patient's description of his or her chest pain or discomfort, the EMT should:

Select one of the following:

  • use medical terminology.

  • use the patient's own words.

  • underline the patient's quotes.

  • document his or her own perception.

Explanation

Question 65 of 88

1

When the myocardium requires more oxygen:

Select one of the following:

  • the heart contracts with less force.

  • the arteries supplying the heart dilate.

  • the heart rate decreases significantly.

  • the AV node conducts fewer impulses.

Explanation

Question 66 of 88

1

When treating a patient with chest pain, you should assume that he or she is having an AMI because:

Select one of the following:

  • angina usually occurs after an AMI.

  • most patients with chest pain are experiencing an AMI.

  • the cause of the pain cannot be diagnosed in the field.

  • angina and AMI present identically.

Explanation

Question 67 of 88

1

When would it be MOST appropriate for a patient to take his or her prescribed nitroglycerin?

Select one of the following:

  • sharp chest pain that lasts longer than 10 to 15 minutes

  • an acute onset of dizziness during a period of exertion

  • chest pain that does not immediately subside with rest

  • difficulty breathing that awakens the patient from sleep

Explanation

Question 68 of 88

1

Which of the following blood vessels transports oxygenated blood?

Select one of the following:

  • superior vena cava

  • pulmonary arteries

  • inferior vena cava

  • pulmonary veins

Explanation

Question 69 of 88

1

Which of the following cardiac arrhythmias has the greatest chance of deteriorating into a pulseless rhythm?

Select one of the following:

  • ventricular tachycardia

  • extra ventricular beats

  • sinus bradycardia

  • sinus tachycardia

Explanation

Question 70 of 88

1

Which of the following is a major difference between angina pectoris and AMI?

Select one of the following:

  • AMI is caused by myocardial ischemia.

  • Anginal pain typically subsides with rest.

  • Nitroglycerin has no effect on angina pectoris.

  • Pain from an AMI subsides within 30 minutes.

Explanation

Question 71 of 88

1

Which of the following is NOT a common sign or symptom associated with malfunction of an implanted cardiac pacemaker?

Select one of the following:

  • a rapid heart rate

  • syncope or dizziness

  • heart rate less than 60 beats/min

  • generalized weakness

Explanation

Question 72 of 88

1

Which of the following is NOT a function of the sympathetic nervous system?

Select one of the following:

  • dilation of blood vessels in the muscles

  • constriction of blood vessels in the muscles

  • increases in the heart and respiratory rates

  • constriction of blood vessels in the digestive system

Explanation

Question 73 of 88

1

Which of the following is of LEAST pertinence when obtaining medical history information from a patient complaining of chest discomfort?

Select one of the following:

  • family history of hypertension

  • presence of personal risk factors

  • history of previous heart attack

  • history of cigarette smoking

Explanation

Question 74 of 88

1

Which of the following is the MOST reliable method of estimating a patient's cardiac output?

Select one of the following:

  • Listen to heart sounds with a stethoscope.

  • Connect the patient to an electrocardiogram.

  • Assess the heart rate and strength of the pulse.

  • Determine the average diastolic blood pressure.

Explanation

Question 75 of 88

1

Which of the following medications is commonly given to patients with chest pain to prevent blood clots from forming or getting bigger?

Select one of the following:

  • furosemide (Lasix)

  • aspirin

  • oxygen

  • digoxin (Lanoxin)

Explanation

Question 76 of 88

1

Which of the following represents the MOST appropriate method of assisting a patient with his or her prescribed nitroglycerin tablet or spray?

Select one of the following:

  • Encourage the patient to chew the tablet to increase its effectiveness.

  • Place the medication under the tongue and have the patient swallow it.

  • Administer the medication sublingually and allow it to dissolve or absorb

  • Wait 15 minutes and reassess the blood pressure prior to administering another dose.

Explanation

Question 77 of 88

1

Which of the following signs is commonly observed in patients with right-sided heart failure?

Select one of the following:

  • labored breathing

  • dependent edema

  • pulmonary edema

  • flat jugular veins

Explanation

Question 78 of 88

1

Which of the following signs or symptoms would you NOT expect to encounter in a patient with congestive heart failure?

Select one of the following:

  • hypertension and tachycardia

  • hypotension and flat jugular veins

  • the presence of rales in the lungs

  • trouble breathing while lying down

Explanation

Question 79 of 88

1

Which of the following statements regarding nitroglycerin is correct?

Select one of the following:

  • The potency of nitroglycerin is increased when exposed to light.

  • A maximum of five nitroglycerin doses should be given to a patient.

  • Nitroglycerin should be administered between the cheek and gum.

  • Nitroglycerin usually relieves anginal chest pain within 5 minutes.

Explanation

Question 80 of 88

1

Which of the following statements regarding the AED and defibrillation is correct?

Select one of the following:

  • The AED will not analyze the rhythm of a moving patient.

  • Defibrillation is the first link in the American Heart Association chain of survival.

  • CPR should be performed for 5 minutes before using the AED.

  • The AED will shock any rhythm not accompanied by a pulse.

Explanation

Question 81 of 88

1

Which of the following statements regarding the pain associated with AMI is correct?

Select one of the following:

  • It is often described by the patient as a sharp feeling.

  • It often fluctuates in intensity when the patient breathes.

  • Nitroglycerin usually resolves the pain within 30 minutes.

  • It can occur during exertion or when the patient is at rest.

Explanation

Question 82 of 88

1

Which of the following veins is located inferior to the trunk?

Select one of the following:

  • cephalic

  • axillary

  • saphenous

  • subclavian

Explanation

Question 83 of 88

1

Which of the following would cause the greatest increase in cardiac output?

Select one of the following:

  • increased heart rate and increased stroke volume

  • decreased stroke volume and increased heart rate

  • decreased heart rate and increased stroke volume

  • decreased stroke volume and decreased heart rate

Explanation

Question 84 of 88

1

You and your partner arrive at the scene of a middle-aged man who collapsed about 5 minutes ago. He is unresponsive, apneic, and pulseless. Bystanders are present, but have not provided any care. You should:

Select one of the following:

  • begin high-quality CPR and apply the AED without delay.

  • perform five cycles of high-quality CPR and then apply the AED.

  • perform two-rescuer CPR for 5 minutes and request ALS backup.

  • immediately apply the AED pads and analyze his cardiac rhythm.

Explanation

Question 85 of 88

1

You are assessing a 49-year-old man who complains of chest pressure that began the night before. He is conscious, but anxious, and tells you he has a history of angina and hypertension. After applying high-flow oxygen, you expose his chest to auscultate his lungs and note that he has a nitroglycerin patch on his right upper chest. His skin is cool and pale, his blood pressure is 78/50 mm Hg, and his pulse is 110 beats/min and irregular. You should:

Select one of the following:

  • remove the nitroglycerin patch, place him in a supine position and elevate his lower extremities, and prepare for immediate transport.

  • immediately remove the nitroglycerin patch, apply the AED in case he develops cardiac arrest, and transport to the closest hospital.

  • move the nitroglycerin patch to the other side of his chest in case you need to apply the AED, keep him warm, and transport without delay.

  • ask him if the nitroglycerin patch he is wearing has improved his chest pressure, complete your secondary assessment, and transport promptly.

Explanation

Question 86 of 88

1

You are dispatched to a convenience store for a patient who passed out. Upon arriving at the scene, you find two bystanders performing CPR on the patient, a 58-year-old male. Your initial action should be to:

Select one of the following:

  • assess the effectiveness of the bystanders' CPR.

  • quickly attach the AED and push the analyze button.

  • have the bystanders stop CPR and assess the patient.

  • request a paramedic unit and quickly attach the AED.

Explanation

Question 87 of 88

1

You are dispatched to a residence for a 56-year-old male with an altered mental status. Upon arrival at the scene, the patient's wife tells you that he complained of chest pain the day before, but would not allow her to call EMS. The patient is semiconscious; has rapid, shallow respirations; and has a thready pulse. You should:

Select one of the following:

  • obtain baseline vital signs.

  • begin ventilatory assistance.

  • attach the automated external defibrillator (AED) immediately.

  • apply a nonrebreathing mask.

Explanation

Question 88 of 88

1

Your EMS team is performing CPR on a 60-year-old male in cardiac arrest. You connect the AED, push the analyze button, and receive a “no shock advised” message. You should:

Select one of the following:

  • reanalyze the patient's cardiac rhythm.

  • perform CPR for 2 minutes and reassess.

  • determine if a palpable pulse is present.

  • immediately assess the patient's airway.

Explanation