Primary MCQs-February 2013

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Primary Physiology Black Bank | Primary Pharmacology Black Bank

In February 2013 there were 2 exams: Exams run under the "old" syllabus 
(for those carrying a pass in one section) 
AND a full exam under the new syllabus (for everyone else siting).


Primary MCQ papers

Feb06 | Jul06 | Feb07 | Jul07 | Feb08 | Jul08 | Mar09 | Jul09 | Mar10 | Jul10 |

Feb11 | Aug11 | Feb12 | Jul12(Physiol) | Jul12(Pharm) | Feb13(Physiol) | Feb13(Pharm) | Feb13(NewExam) | Sep13 | Feb14 |

Aug14 | Feb15 | Aug15 | Feb16 | Aug16 |

Physiology MCQs

Unclassified so far

Basic Physiology


Fluid and Electrolyte Physiology

NEW Something about factors causing/preventing interstitial fluid accumulation: Alt: Beneficial factors preventing interstitial edema formation:

A. High compliance of interstitial system
B. ?
C. ?

Repeat: PaCO2 at 200mmHg, what is the electrolyte disturbance?

A. Hyperkalemia
B. ?
C. ?

REPEAT During heavy exercise, sweat is:

A: hyper-osmolar to plasma
B: hypo-osmolar to plasma
C: iso-osmolar

Acid Base Physiology

NEW Comment pH change from 7.4 to 7.1, how does the H+ ions concentration vary?

A: increases by 50%
B: increases by 150%
C: increases by 100%
D: decreases by 20%
E: no change as it is buffered

REPEAT Acid base values showing respiratory alkalosis with high bicarb:

B: climber at altitude (acclimatised)
C: metabolic acidosis
D: vomiting
E: 5 minutes of hyperventilation

Respiratory Physiology

RE47 [Mar03] [Jul03] [Feb04] [Jul04] [Mar05] The amount of oxygen dissolved in plasma is

A. 0.03ml O2/100ml at PaO2 100mmHg
B. 6ml O2/100ml breathing 100% O2 at 3 atmospheres
C. 6ml O2/100ml breathing room air at 3 atmospheres
D. 0.3ml O2/l breathing room air at 1 atmosphere
E. 6 ml O2/100mls breathing 100% O2

Repeat: At what height does atmospheric pressure becomes half?

A. 1500m
C. 5500M (correct)
D. 7,700m
E. 10,500m

Cardiovascular Physiology

Which ONE of the following is TRUE?

A: ?
B: PR interval occurs during atrial diastole
D: the duration of systole is roughly 1/3 of cardiac cycle, at a heart rate of 75/min

NEW In an unfit/untrained person, which mechanism accounts for the increase in cardiac output?

B:?increase skeletal muscle blood flow
D: increased contractility
E: increased heart rate

Heart rate is decreased by:

A: atrial receptors
E: ventricular receptors

REPEAT: ECG changes in hypokalemia

A: increased QT
B: increased QRS
C: decreased PR

REPEAT: Closure of the ductus arteriosus occurs due to:

A: oxygen mediated smooth muscle contraction

REPEAT: Baroreceptors found everywhere except:

A: Carotid body

REPEAT CV84 Comparing the aorta and radial artery: (same options as prev)

REPEAT CV26 During increased intrathoracic pressure of Valsalva manoeuvre:

Renal Physiology

Actions of ADH in the kidney:

B: something about collecting ducts
C: increase aquaporins in basolateral surface
D: cause vasoconstriction by actions on V1 (or?V2) receptors

REPEAT MCQ-feb12-37 Actions of PTH on the kidney:

GI Physiology

NEW Lower oesophageal sphincter:

A: tone is only due to smooth muscle
B: ?
E: tone increases when intragastric pressure increases

Blood & Immunology

NEW Platelets:

A: have a nucleus and granules (OR- A: have no nucleus but with granules)
B: something about half life in plasma (maybe 8-10 days)
C: 4-7┬Ám in size

Endocrine and Metabolism

Which of the following hormones is LEAST likely to be inotropic?

A: adrenal corticoids
B: adrenal medullary hormones
C: insulin
D: glucagon
E: thyroxine

Comment Genuinely horrible question. All five have inotropic effects. Insulin is the least likely however, as the experimental data for its inotropic effects were 1) primarily in vitro 2) variable between studies and hence, inconclusive.


Muscle and NMJ Physiology

Maternal, Fetal and Neonatal Physiology

Clinical Measurement

Question on impedance...capacitance...??

REPEAT MCQ-feb12-70 Absolute Humidity: same options as previously

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