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541 www.smj.org.sa Saudi Med J 2011; Vol. 32 (5)
Multiple Choice Queions Section
Saudi Medical Journal introduces this new section on multiple choice questions as part o its commitmentto continuous education and learning. Board residents are encouraged to read this section to improve
their knowledge and direct their reading or written examinations.
All questions are supplied by and published with permission rom theExamination Department, Saudi Commission For Health Specialties
Riyadh, Kingdom o Saudi Arabia.
Choose the most appropriate single answer.
1. In normal physiological conditions, PO2
o arterial blood is about 95 mm Hg and oxygen saturationo hemoglobin is about 97%. I PO
2is reduced to 60 mm Hg, what will be the approximate oxygen
saturation o the blood?
(A) 95%
(B) 90%
(C) 85%
(D) 75%
2. Carotid artery stenosis can predispose patients to stroke & transient ischemic attacks. Which one o the ollowing conditions is associated with a higher incidence o signicant carotid artery disease?
(A) Subclavian artery stenosis.
(B) Let main coronary artery stenosis.
(C) Right coronary artery stenosis.
(D) Aortic valve stenosis.
3. Tis is the picture o a monitoring catheter. What are the monitoring parameters that this catheter
can be used to measure?
(A) Central venous pressure & cardiac output.
(B) Central venous pressure, pulmonary artery pressure
& cardiac output.
(C) Central venous pressure, pulmonary artery pressure,pulmonary capillary wedge pressure & cardiac output.
(D) Central venous pressure, pulmonary artery pressure,
pulmonary capillary wedge pressure, mixed venous
saturation & cardiac output.
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542 Saudi Med J 2011; Vol. 32 (5) www.smj.org.sa
4. A 58-year-old diabetic lady with good let ventricular unction and triple vessel coronary artery diseaseunderwent CABG. Coming of bypass, the patient is running a very low central venous pressure(CVP) and marginal blood pressure (BP). All the volume rom the pump has been given but thesituation does not change. What is the best strategy i the CVP & BP are still low?
(A) Add another 1 liter o colloid in the reservoir and give it rapidly.
(B) Suggest that an inotrope be started.
(C) Suggest that patient should receive a vasoconstrictor.
(D) Suggest that the patient should go back on bypass.
5. What in the name o this catheter?
(A) Retrograde cerebral perusion catheter.
(B) Retrograde cardioplegia catheter.
(C) Ante-grade cardioplegia catheter.
(D) Peritoneal dialysis catheter.
------------------------------------------------------------------------------------------------------------------------------ Answers on page 556
Multiple choice questions
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Multiple choice questions
ANSWERS:
1. Answer: B
Specialty Domain: Diagnosis
Section: Cardiac Physiology
Type: Recall Knowledge
Reference: Guyton AC, Hall JE. Textbook of Medical Physiology. 10th ed.Philadelphia (PA): Saunders College Publishing; 2000. p. 467.
2. Answer: B
Specialty Domain: Diagnosis
Section: Cerebral Protection
Type: Recall Knowledge
Reference: Kirklin JW, Barratt-Boyes EG, editors. Cardiac Surgery. 3rd ed. New York (NY): Churchill Livingstone; 2003. p. 411.
3. Answer: D
Specialty Domain: DiagnosisSection: Monitoring of Cardiac Patient
Type: Recall Knowledge
Reference: Bojar RM. Manual of peri-operative care in adult cardiac surgery. 3rd ed.2005. New York (NY): John Wiley & Sons, Inc. p. 227.
4. Answer: C
Specialty Domain: Diagnosis
Section: Fluid-electrolyte balance
Type: Interpretation
Reference: Bojar RM. Manual of peri-operative care in adult cardiac surgery. 3rd ed.
2005. New York (NY): John Wiley & Sons, Inc. p. 473.5. Answer: B
Specialty Domain: Diagnosis
Section: Myocardial Preservation
Type: Recall Knowledge
Reference: Bojar RM. Manual of peri-operative care in adult cardiac surgery. 3rd ed.2005. New York (NY): John Wiley & Sons, Inc. p. 211.