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1Why is it beneficial to hit the chest wall when the heart is in ventricular fibrillation?
- AProduces physical depolarisation of membranes to stop ectopic stimuli
- BProduces chemical depolarisation of membranes to stop ectopic stimuli
- CStops the action of acetylcholine on cardiac function
2Addition of calcium chloride to isolated rabbit heart preparation resulted in:
- ADecrease in both heart rate and force of contraction
- BIncrease in both heart rate and force of contraction
- CIncrease in heart rate and no significant change in force of contraction
- DIncrease in force of contraction and no significant change in heart rate
- ENo change in heart rate or force of contraction
3Addition of Atropine followed by Acetylcholine to isolated rabbit heart preparation resulted in:
- ADecrease in both heart rate and force of contraction
- BIncrease in heart rate and decrease in force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase in force of contraction
- ENo change in heart rate or force of contraction
4Addition of propanolol followed by acetylcholine to isolated rabbit heart preparation resulted in:
- ADecrease in both heart rate and force of contraction
- BSmall increase in both heart rate and force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase force of contraction
- ENo change in heart rate or force of contraction
5Addition of acetylcholine to isolated rabbit heart preparation resulted in:
- ADecrease in both heart rate and force of contraction
- BIncrease in heart rate and decrease in force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase in force of contraction
- ENo change in heart rate or force of contraction
6Addition of Propanolol followed by Noradrenaline to isolated rabbit heart preparation resulted in:
- ASMALL decrease in both heart rate and force of contraction
- BSMALL increase in both heart rate and force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase force of contraction
- ENo change in heart rate or force of contraction
7Addition of Phentolamine followed by Noradrenaline to isolated rabbit heart preparation resulted in:
- ASMALL decrease in both heart rate and force of contraction
- BSMALL increase in both heart rate and force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase in force of contraction
- ENo change in heart rate or force of contraction
8Addition of noradrenaline to isolated rabbit heart preparation resulted in:
- ADecrease in both heart rate and force of contraction
- BIncrease in heart rate and decrease in force of contraction
- CIncrease in both heart rate and force of contraction
- DDecrease in heart rate and increase in force of contraction
- ENo change in heart rate or force of contraction
9What are the 4 extracardiac causes of heart failure?
- AHypertension
- BValve disease
- CAnaemia
- DIschaemic heart disease
- EViral myocarditis
- FArrythmias
- GHaemorrhagic shock
10What are the 3 cardiac causes of heart failure?
- AIschaemic heart disease
- BViral myocarditis
- CHaemorrhagic shock
- DHypertension
- EArrythmias
- FValve disease
- GAnaemia
11The 4 ischaemic syndromes are:
1. [blank_start]Myocardial infarction[blank_end]
2. [blank_start]Angina pectoris[blank_end]
3. [blank_start]Chronic ischaemic heart disease[blank_end] leading to chronic heart failure
4. [blank_start]Sudden cardiac death[blank_end]- ASudden cardiac death
- BAngina pectoris
- CChronic ischaemic heart disease
- DMyocardial infarction
12What is the most common cause of heart failure in the Western population?
- AArrythmias
- BHypertension
- CIschaemic heart disease
- DValve disease
- EAnaemia
13Left-sided heart failure leads to systemic oedema.
- ATrue
- BFalse
14Right-sided heart failure leads to systemic and peripheral oedema
- ATrue
- BFalse
15Which of the following treatments do NOT help to control excessive fluid retention in chronic heart failure?
- AAngiotensin Converting Enzyme (ACE) inhibitors
- BLoop-diuretics
- CGlycosides
- DDiuretics
16Angina pectoris usually causes necrosis.
- ATrue
- BFalse
17Myocardial infarction does not usually cause necrosis.
- ATrue
- BFalse
18What is the hallmark of myocardial infarction?
- APathologic Q wave
- BPathologic QRS complex
- CT wave inversion
- DST elevation
19What are the 2 main treatments for angina pectoris?
- AGlycosides
- BGlyceryl trinitrate
- Cβ-blockers
- DDiuretics
20Cardiac Output = [blank_start]Heart Rate[blank_end] x [blank_start]Stroke Volume[blank_end]
- AHeart Rate
- BStroke Volume
21The 2 control mechanisms which modify the work of the heart are:
1. [blank_start]Intrinsic (Heterometric)[blank_end]
2. [blank_start]Extrinsic (Homeometric)[blank_end]- AIntrinsic (Heterometric)
- BExtrinsic (Homeometric)
22According to Starling's Law of the heart, [blank_start]force of contraction[blank_end] is proportional to the [blank_start]initial fibre length[blank_end] in [blank_start]diastole[blank_end].
- Aforce of contraction
- Binitial fibre length
- Cdiastole
23According to Starling's Law of the heart, an increase in stretch will cause an increase in the next contraction.
- ATrue
- BFalse
24What is the most common cause of third-degree AV block?
- AIntermittent failure of AV conduction
- BAcute myocardial infarction
- CChronic degenerative disease of the conduction system
- DSudden cardiac death
- EAngina pectoris
- FChronic ischaemic heart disease
25Where is the defect in second-degree AV block?
- AAt or before the AV node
- BAbove or below the Bundle of His
- CAV node
- DHis-Purkinje System
26Where is the defect in first-degree AV block?
- AHis-Purkinje system
- BAV node
- CAt or before the AV node
- DAbove or below the Bundle of His
27What characterises first-degree AV block?
- ANot every P wave is followed by a QRS complex
- BT-P interval not constant
- CLonger PR interval than normal (>0.2s)
- DAbnormally wide QRS complexes
28What characterises third-degree AV block?
- AAbnormally wide QRS complexes
- BLonger PR interval than normal (>0.2s)
- CNot every P wave is followed by a QRS complex
- DP wave and QRS complexes are independent of one another
29Which of the following types of heart block are not serious and do not usually require treatment?
- AMobitz Type II
- BBlock below the AV node
- CSufficient undamaged AV node tissue & no defect in the bundle of His
- DMobitz Type I
- EFirst-degree AV block
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- 1 Medicine (CRRM) Quiz on CRRM, created by Victoria Chan on 16/12/2015.
- Author
- Victoria Chan
- Language
- English
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