462Saudi Med J 2012; Vol. 33 (4)www.smj.org.sa Multiple Choice
Quesions SectionSaudi Medical Journal introduces this new section
on multiple choice questions as part of its commitment to
continuous education and learning.Board residents are encouraged to
read this section to improve their knowledge and direct their
reading for written examinations. All questions are supplied by and
published with permission from the Examination Department, Saudi
Commission For Health SpecialtiesRiyadh, Kingdom of Saudi
Arabia.Choose the most appropriate single answer.1.During
cardiopulmonary bypass, if blood is left in the pericardial cavity
for a signicant period of time before being sucked into the
cardiotomy suckers, what is the deleterious eect?(A)Increased
chances of thrombosis(B)Increased chances of bleeding(C)Induction
of hypothermia (D)Familial type - Medullary carcinoma thyroid 2.Te
use of the following device in cardiopulmonary circuit reduces need
for blood transfusion? What is the device
called?(A)Hemoconcentrator(B)Roller pump head(C)Centrifugal pump
head(D)Cell saver
3.Vacuum-assistedvenousreturnisachievedbyapplyingnegativepressuretothevenousreservoir.It
reducesneedforhemodilutionandtheuseofblood.Tepressureappliedtothevenousreturnis
approximately:(A)-20 to - 30 cm water(B)-40 to -60 cm water(C)70 to
-80 cm water(D)-90 to -100 cm waterSMJ April 2012.indb 462 4/1/12
4:09:43 PM463 www.smj.org.sa Saudi Med J 2012; Vol. 33 (4) 4.
Double-stage venous cannulation means that:(A)Separate venous
cannulae are inserted into superior and inferior vena
cavae(B)Superior and inferior vena cavae are cannulated one after
the other(C)One venous cannula is inserted that has drainage holes
in thesuperior and inferior vena cavae(D)One venous cannula is
inserted that has drainage holes in the right atrium & inferior
vena cava5.Tis is the picture of an arterial cannula.Tis special
design of the tip of arterial cannula has been mainly developed
to:(A)Reduce air embolism around the cannula(B)Reduce sheer damage
to blood and aortic wall(C)Facilitate easy insertion into the
aorta(D)Reduce clotting around the
cannula-----------------------------------------------------------------------------------------------------------------------------
Answers on page 480Multiple choice questionsSMJ April 2012.indb 463
4/1/12 4:09:47 PM480Saudi Med J2012; Vol. 33
(4)www.smj.org.saMultiple choice questionsANSWERS:1.
Answer:BSpecialty Domain: DiagnosisSection: Circuits for
CPBType:Recall KnowledgeReference:Bojar RM, Warner K,
editors.Manual of Perioperative Care in Cardiac Surgery. 3rd ed.
USA: Blackwell Publishing Company; 2005. p. 180. 2.
Answer:CSpecialty Domain: DiagnosisSection: Cannulae & Circuits
for CPB.Type:Recall KnowledgeReference:Bojar RM, Warner K,
editors.Manual of Perioperative Care in Cardiac Surgery. 3rd ed.
USA: Blackwell Publishing Company; 2005. p. 180.3.
Answer:BSpecialty Domain: DiagnosisSection: Cannulae & Circuits
for CPBType:Recall KnowledgeReference:Kouchoukos N, Blackstone E,
Doty D, Hanley F, Karp R, editor.
Kirklin/Barratt-BoyesCardiacSurgery.3rded.Oxford(UK):Churchill
Livingstone 2003. p. 82. 4. Answer:DSpecialty Domain:
DiagnosisSection: Cannulae & Circuits for CPB.Type:Recall
Knowledge.Reference:Bojar RM, Warner K, editors.Manual of
Perioperative Care in Cardiac Surgery. 3rd ed.USA: Blackwell
Publishing Company; 2005. p. 186.5. Answer:BSpecialty Domain:
DiagnosisSection: Cannulae & Circuits for CPB.Type:Recall
Knowledge.Reference:Bojar RM, Warner K, editors.Manual of
Perioperative Care in Cardiac Surgery. 3rd ed. USA: Blackwell
Publishing Company; 2005. p. 182.SMJ April 2012.indb 480 4/1/12
4:10:10 PM
