ANZCA Primary MCQs UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Hb is a good buffer because:
A. Large concentration
B. 38 imidazole groups on Histidine residues - CORRECT ANSWER -A
Which of the following is classified as a "strong ion"?
A. phosphate
B. chloride
C. albumin - CORRECT ANSWER -B
Bicarbonate buffer most important extracellular buffer system because::
A. Because CO2 and HCO3- are present in large concentrations
B. Because of carbonic anhydrase
C. Because CO2 is dealt with by the lung and HCO3- by the kidneys
D. Of the Henderson-Hasselbach equation - CORRECT ANSWER - C - open ended buffer
system
Pure water at pH 7 has hydrogen ion concentration of
A. 0 nanomol/L
B. 40 nanomol/L
C. 70 nanomol/L
D. 100 nanomol/L
E. 1000 nanomol/L - CORRECT ANSWER -D
Hydrogen ion concentration in plasma with a PH of 7.1
,A. 80 nmol
B. 40 nmol
C. 120 nmol
D. 0 nmol :
E. ? - CORRECT ANSWER -A
Which of these increases vasopressin (ADH) secretion?
A. Increase in arterial BP
B. Moving to erect position
C. Increased pressure venoatria junction
D. Reduced effective oncotic pressure plasma
E. Increase ECF volume - CORRECT ANSWER -B
Hartmann's solution contains
A. 154 mmol/L Na+:
B. 2 mmol/L Ca++:
C. 2 mmol/L K+:
D. 154 mmol/L Cl:
E. 3 mmol/L Mg2+ - CORRECT ANSWER -B
Cardiogenic shock is the result of:
A. decreased arterial pressure
B. cardiac arrhythmia
C. decreased stroke volume
D. decreased venous return
E. increased venous pressure - CORRECT ANSWER -C
Administration of a large volume of Normal Saline (0.9%) is likely to produce
,A. no change in acid base status
B. hyperchloraemic metabolic acidosis
C. hypochloraemic metabolic acidosis
D. hyperchloraemic metabolic alkalosis
E. hypochloraemic metabolic alkalosis - CORRECT ANSWER -B
Torsades de Pointes:
A. results from SVT
B. more likely in bradycardia in susceptible pts
C. treated with 150mg of amiodarone over 30 minutes
D. results from hypermagnesaemia - CORRECT ANSWER -B
Carotid sinus massage is used in SVT to:
A. Decrease sympathetic stimulation of SA node:
B. Increase vagal outflow to SA node:
C. Decrease sympathetic stimulation to AV node:
D. Increase vagal outflow to AV node:
E. Decrease conductivity - CORRECT ANSWER -D
Peripheral vascular resistance:
A. can be calculated from mean arterial pressure/ pulmonary wedge pressure:
B. units are dynes∙s∙cm−5
C. equals diving pressure mutiplied by CO - CORRECT ANSWER -B
Healthy young person loses 20% of their blood volume:
A. diastolic pressure decreases:
B. increased ADH secretion:
C. reduced cerebral blood flow:
, D. increased urinary sodium excretion - CORRECT ANSWER -B
What is the initial response to moving from supine to erect :
A. Increased SV:
B. Increased CO:
C. Increased TPR:
D. Increased MAP:
E. Increased CVP - CORRECT ANSWER -C
Which of the following would cause a decrease in fluid movement from a capillary to the
interstitium?:
A. Closure of pre-capillary sphincters:
B. Increased plasma oncotic pressure:
C. Decreased MAP:
D. Decreased venous pressure:
E. Sympathetically mediated increased arteriolar tone - CORRECT ANSWER -B
Normal CVS physiology in elderly::
A. Increased arterial elasticity:
B. Increased DBP:
C. Increased pulse pressure:
D. Increased ventricular compliance:
E. Faster diastolic filling time - CORRECT ANSWER -C
Ankle venous pressure in adult standing (mmHg): :
A. 4.5:
B. 9:
C. 45 :
ACTUAL Exam Questions and CORRECT
Answers
Hb is a good buffer because:
A. Large concentration
B. 38 imidazole groups on Histidine residues - CORRECT ANSWER -A
Which of the following is classified as a "strong ion"?
A. phosphate
B. chloride
C. albumin - CORRECT ANSWER -B
Bicarbonate buffer most important extracellular buffer system because::
A. Because CO2 and HCO3- are present in large concentrations
B. Because of carbonic anhydrase
C. Because CO2 is dealt with by the lung and HCO3- by the kidneys
D. Of the Henderson-Hasselbach equation - CORRECT ANSWER - C - open ended buffer
system
Pure water at pH 7 has hydrogen ion concentration of
A. 0 nanomol/L
B. 40 nanomol/L
C. 70 nanomol/L
D. 100 nanomol/L
E. 1000 nanomol/L - CORRECT ANSWER -D
Hydrogen ion concentration in plasma with a PH of 7.1
,A. 80 nmol
B. 40 nmol
C. 120 nmol
D. 0 nmol :
E. ? - CORRECT ANSWER -A
Which of these increases vasopressin (ADH) secretion?
A. Increase in arterial BP
B. Moving to erect position
C. Increased pressure venoatria junction
D. Reduced effective oncotic pressure plasma
E. Increase ECF volume - CORRECT ANSWER -B
Hartmann's solution contains
A. 154 mmol/L Na+:
B. 2 mmol/L Ca++:
C. 2 mmol/L K+:
D. 154 mmol/L Cl:
E. 3 mmol/L Mg2+ - CORRECT ANSWER -B
Cardiogenic shock is the result of:
A. decreased arterial pressure
B. cardiac arrhythmia
C. decreased stroke volume
D. decreased venous return
E. increased venous pressure - CORRECT ANSWER -C
Administration of a large volume of Normal Saline (0.9%) is likely to produce
,A. no change in acid base status
B. hyperchloraemic metabolic acidosis
C. hypochloraemic metabolic acidosis
D. hyperchloraemic metabolic alkalosis
E. hypochloraemic metabolic alkalosis - CORRECT ANSWER -B
Torsades de Pointes:
A. results from SVT
B. more likely in bradycardia in susceptible pts
C. treated with 150mg of amiodarone over 30 minutes
D. results from hypermagnesaemia - CORRECT ANSWER -B
Carotid sinus massage is used in SVT to:
A. Decrease sympathetic stimulation of SA node:
B. Increase vagal outflow to SA node:
C. Decrease sympathetic stimulation to AV node:
D. Increase vagal outflow to AV node:
E. Decrease conductivity - CORRECT ANSWER -D
Peripheral vascular resistance:
A. can be calculated from mean arterial pressure/ pulmonary wedge pressure:
B. units are dynes∙s∙cm−5
C. equals diving pressure mutiplied by CO - CORRECT ANSWER -B
Healthy young person loses 20% of their blood volume:
A. diastolic pressure decreases:
B. increased ADH secretion:
C. reduced cerebral blood flow:
, D. increased urinary sodium excretion - CORRECT ANSWER -B
What is the initial response to moving from supine to erect :
A. Increased SV:
B. Increased CO:
C. Increased TPR:
D. Increased MAP:
E. Increased CVP - CORRECT ANSWER -C
Which of the following would cause a decrease in fluid movement from a capillary to the
interstitium?:
A. Closure of pre-capillary sphincters:
B. Increased plasma oncotic pressure:
C. Decreased MAP:
D. Decreased venous pressure:
E. Sympathetically mediated increased arteriolar tone - CORRECT ANSWER -B
Normal CVS physiology in elderly::
A. Increased arterial elasticity:
B. Increased DBP:
C. Increased pulse pressure:
D. Increased ventricular compliance:
E. Faster diastolic filling time - CORRECT ANSWER -C
Ankle venous pressure in adult standing (mmHg): :
A. 4.5:
B. 9:
C. 45 :
