Frage 1
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Blood gas data does not assess which of the following processes?
Antworten
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Oxygenation
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Ventilation
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Acid-base balance
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Perfusion
Frage 2
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When has a person has acidemia, the H* ion concentration in the blood is [blank_start]increased[blank_end] while in alkalemia, the H* ion concentration in the blood is [blank_start]decreased[blank_end].
Frage 3
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Base excess has a normal value of [blank_start]zero[blank_end]. A negative value of base excess indicates metabolic acidosis while a positive value indicates metabolic alkalosis.
Frage 4
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A pH of 7.0 is what amount of hydrogen ions?
Frage 5
Frage
Which is the first line of defense to maintain homeostasis?
Antworten
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Bicarbonate
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Hemoglobin
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Protein
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Phosphate
Frage 6
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[blank_start]Protonation[blank_end] is when an acid donates H* to the base.
Frage 7
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Which of the following pKa values would be the strongest acid?
Frage 8
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Label the steps of the following in the bicarbonate buffer system.
[blank_start]1[blank_end] Carbon dioxide combines with water
[blank_start]4[blank_end] H* and bicarbonate products are formed
[blank_start]2[blank_end] Carbonic acid is formed
[blank_start]3[blank_end] Carbonic acid dissociates
Frage 9
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This image is an example of the [blank_start]Henderson-Hasselbach equation[blank_end].
Frage 10
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According to the Henderson-Hasselbach equation, pH is [blank_start]positively[blank_end] related to bicarb and [blank_start]inversely[blank_end] related to PaCO2.
Frage 11
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Hemoglobin protein can reversibly bind either to H* (the protein) or 02 (to the Fe of the heme group). When one substance is bound, the other is [blank_start]released[blank_end].
Frage 12
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What's another word for a hamburger shift?
Antworten
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Chloride shift
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Potassium shift
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Sodium shift
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Bicarbonate shift
Frage 13
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What chemoreceptor is responsible for 85 percent of the ventilatory response to increased PaC02?
Antworten
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Peripheral
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Central
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Afferent
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Efferent
Frage 14
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The proximal tubules of the kidneys regulate what?
Frage 15
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What medication inhibits carbonic anhydrase inhibitors, which impairs bicarb absorption?
Antworten
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Acetazolamide
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Lasix
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Diuril
Frage 16
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A compensatory response to acid-base disturbances is in the [blank_start]same[blank_end] direction as the disturbance.
Frage 17
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What is the threshold pH that indicates need for intubation?
Frage 18
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With metabolic alkalosis with chronic respiratory acidosis, you should avoid mechanical hyperventilation.
Frage 19
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Fill in the equation for an anion gap:
AG = [blank_start]Na[blank_end] - ([[blank_start]Cl[blank_end]] - [[blank_start]HCO3[blank_end]])
Antworten
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Na
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K
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Cl
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HCO3
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Cl
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K
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Na
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HCO3
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HCO3
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Na
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Cl
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K
Frage 20
Frage
Which of the following are indicators of the severity of metabolic acidosis? (Select all that apply)
Antworten
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Base deficit
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Lactate levels
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pKa levels
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Bicarb levels
Frage 21
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What is the calculation for sodium bicarbonate resuscitation in metabolic acidosis?
Base deficit X patient weight in kilograms X WHAT? = mEq of NaCHO3; Divide this dose in half and re-test after initial dose.
Frage 22
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Transfusing large volumes of blood can cause metabolic acidosis.