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L11 Digitalis toxicity, Toxicology

 Lecture video 



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MCQ 


1_ All are true about digoxin except :

A) It has a narrow therapeutic-toxic index

B) The highest concentrations are found in the muscles

C) The final volume of distribution is very large

D) It has a narrow distribution in the body tissues 

2_ Digoxin is used in all of the following cases except:

a)Congestive heart failure) 

b)Supraventricular tachydysrhythmia)

(c)chronic systolic heart failure.

d)bradydisarrythmia) 


3_All the following are contraindicated in digitalis-induced dysrhythmia, except:

(A) Quinidine .

(B) Procainamide.

C) IV Calcium).

D) Phenytoin).

  4_The specific antidote todigoxin is:

a)Flumazenil)

b)Naloxone)

c)Digifab)

d)Glucagon)


True or false 

1_After acute over dose toxicity of digoxin , it results in hyperkalemia ( )        

2_One of the mechanisms of digoxin is stimulating Na_ k atbase pump. ( )

3_In digoxin acute toxicity, cardiac effects develop after 6 or more hours of ingestion. ( )   

4_Hyperkalemia has important prognostic implications, than either the initial ECG changes or the serum cardioactive steroid concentration. ( )

5_Renal insufficiency is a factor which precipitate digoxin toxicity. ( )

6_In digitalis toxicity. Fab fragments should be administrated immediately without any precaution ( )



Answers mcq

1_d
2_d
3_d
4_c

 Answers True , false 

1_true
2_false
3_true
4_true
5_true
6_false

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