CARDIOVASCULAR SYSTEM MCQ – Exercise 24

The multiple choice questions in this online test paper focuses on CARDIOVASCULAR SYSTEM MCQ. If you are looking for self evaluation of your PG Medical entrance exam preparation then this online CARDIOVASCULAR SYSTEM MCQ Test Paper will help you to evaluate your exam preparation.

Instruction for REPRODUCTIVE BIOLOGY/ REPRODUCTIVE MEDICINE / INFERTILITY MCQs:

1- This online MCQ practice test paper contains 30 questions.
2- Each question in this online practice test paper have four options and only 1 option is correct.
3- You can view the answers of this practice test paper after submitting the practice test paper.
Note: The answers mentioned at the end of practice test are the best suitable option as per our knowledge. Users shall cross-check the answers with their textbooks.

Q 1. in presence of a normal duration QRS complex delay within AV node is the cause of prolonged PR interval if it is

> .21 seconds

> .22 seconds

> .23 seconds

> .24 seconds

Q 2. which of the following about Levs disease is false

calcification and sclerosis of fibrous cardiac skeleton

frequently involves pulmonary and tricuspid valve

involve central fibrous body & summit of ventricular septum

produces AV block

Q 3. it may be difficult to distinguish between type and type 2 block when AV block is

2:1

3:1

4:1

5:1

Q 4. Mobitz type I is also named after

Karel Frederik Wenckebach

john hay

Robert silverman

jack upshaw

Q 5. which of the following statements about mobitz typeI second degree AV block is false

most usually occurs transiently with IWMI

due to digitalis, β blockers and Ca2+ channel blockers

seen in normal individuals with heightened vagal tone

leads to complete heart block

Q 6. mutation in which of the following gene causes accelerated forms of progressive familial heart block

KCNQ1

KCNH2 ( HERG)

SCN5A

ANK2

Q 7. ongenital AV block in a structurally normal heart is seen in children born to mothers with

SLE

sarcoidosis

rheumatoid arthritis

hemochromatosis

Q 8. to obtain recording from bundle of his the electrodes catheter is positioned

across the pulmonary valve

across the tricuspid valve

in coronary sinus

in superior vena cava

Q 9. which of the following is associated with SA node slowing and AV conduction block

carotid sinus hypersensitivity

cough

micturation syncope

all of the above

Q 10. which of the following statements about mobitz typeII second degree AV block is false

conduction fails suddenly and unexpectedly without a preceding change in PR intervals

due to disease of His Purkinje system and association with prolonged QRS duration

when Mobitz type II block occurs with a normal QRS duration an intra AV node block should be suspected

high incidence of progression to complete heart block with an unstable slow lower escape pacemaker

Q 11. congenital AV block may be seen in which of the following

TGA

Ostium primum ASD

VSD

all of the above

Q 12. which of the following statements about mobitz typeI second degree AV block is false

usually the difference between the longest and shortestinterval exceeds 100 ms

block is almost always localized to AV node

usually associated with a normal QRS dur

amiodarone therapy is the usual cause

Q 13. AV block that is intermediate between second degree and third degree is referred to as

high grade AV block

pre third degree AV block

post second degree AV block

paroxysmal AV block

Q 14. which of the following about type II second degree AV block is false

occurs in distal or infra – His conduction systems

associated with intraventricular conduction delays

may proceed to higher grades of AV block

none of the above

Q 15. which of the following statements about mobitz typeII second degree AV block is false

intermittent failure of conduction of the P wave without changes in the preceeding PR intervals

typicall occurs in distal or infra His conduction system

none of the above

Q 16. in acute MI , AV block transiently develops in what percentage of patients

5-10%

10-25%

20-35%

30-45%

Q 17. which of the following improve conduction through AV node & impair infranodal conduction

atropine

isoproternol

exercise

all of the above

Q 18. paroxysmal AV block best relates to

self correcting AV block

series of nonconducted P waves

P wave buried in QRS complex

P wave following QRS complex

Q 19. which of the following about third degree AV block is false

no atrial impulse propagates to ventricles

congenital complete AV block is localized to AV node

in AV nodal block QRS duration is prolonged

in HIS bundle block QRS duration is prolonged

Q 20. Mobitz type I is also named after

Karel Frederik Wenckebach

john hay

Robert silverman

jack upshaw

Q 21. when some atrial impulses fail to conduct to the vantricals the type of AV block is

first degree heart block

second degree heart block

third degree heart block

none

Q 22. nationality of Woldermar Mobitz was

Russian German

British American

Spanish

Anglo indian

Q 23. condition that can produce AV conduction block include

tuberculosis

lyme disease

diptheria

all of the above

Q 24. AV conduction block has been associated with which of the following

Kearns-Sayre syndrome

Myotonic dystrophy

fascioscpulohumeral muscular dystrophy

all of the above

Q 25. 1 ◦ AV block with wide QRS suggests delay in

proximal AV node

Mid AV node

Distal AV node

distal conduction system

Q 26. which of the following about Lengers disease is false

primary sclerodegenerative disease in conducting sytem

no involvement of myocardium

involve fibrous skeleton of heart

cause of isolated heart blocks in adults

Q 27. PR interval is determined by

atrial activation

AV nodal activation

His purkinje activation

all of the above

Q 28. which of the following statements about mobitz typeII second degree AV block is false

occurs in anteroseptal MI

occurs in primary or secondary sclerodegenerative or calcific disorders of fibrous skeleton of heart

block is usually in AV node

block is usually in His purkinje system

Q 29. which of the following statements about Mobitz type I second degree AV block is false

also called AV wenckebach block

progressive PR prolongation prior to block of an atria impulse

pause that follows is fully compensatory

PR interval of first conducted impulse is shorter than the last conducted atrial impulse prior to blocked

Q 30. condition that can produce AV conduction block include

sarcoidosis

SLE

rheumatoid arthritis

all of the above

CARDIOVASCULAR SYSTEM MCQ – Exercise 24

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