Forwarded from مصطفى فتيان الماهود
One of the following is false about Plasmid
Anonymous Quiz
63%
is an intra-chromosomal genetic elements associated with bacterial resistance to antibiotics
8%
plasmids carry many genes that code for the production of enzymes that destroy the antibiotics
5%
plasmids may result in epidemic resistance among bacteria by moving from one to the other
7%
ß- lactamases destroys the ß- lactam ring in penicillin & cephalosporin
17%
All are true
Forwarded from مصطفى فتيان الماهود
streptomycin resistance can result from a mutation in the chromosomal gene that controls the receptor for streptomycin located in the 50s bacterial ribosome
Anonymous Quiz
40%
T
60%
F
Forwarded from مصطفى فتيان الماهود
In hospitals its common finding that about 90 % of Staphylococcus aureus strains are resistant to penicillin
Anonymous Quiz
90%
T
10%
F
Forwarded from مصطفى فتيان الماهود
effect on the 8th cranial nerve leading to deafness
Anonymous Quiz
13%
tetracyclines
64%
streptomycin
23%
aminoglycosides
Forwarded from مصطفى فتيان الماهود
The use of benzathine penicillin G injections every 3-4 weeks to prevent reinfection with
Anonymous Quiz
5%
cholera
85%
Streptococcus pyogenes in rheumatic patients
4%
neonatal sepsis
5%
gonorrhea
Forwarded from مصطفى فتيان الماهود
Test your self 3rd stage pinned «محاضرة دكتور سعد الثانية Antimicrobial chemotherapy»
Forwarded from MCQ 3rd stage 🦋
Atropine overdose may cause which one of the following
Anonymous Quiz
17%
Gastrointestinal smooth muscle cramps
57%
Increase cardiac rate
6%
Increase gastric secretion
9%
Pupillary contraction
10%
Urinary frequency
Forwarded from MCQ 3rd stage 🦋
All the following statements about atropine are true except
Anonymous Quiz
54%
Is a reversible anti-cholinesterase
12%
Is contraindicated in glaucoma
6%
Causes dry mouth
8%
Is use in cholinergic poisoning
21%
Can be given orally and parents parenterally
Forwarded from MCQ 3rd stage 🦋
Ganglion blocking drugs:
Anonymous Quiz
18%
Benzhexol
12%
Propantheline
58%
Macamylamine
12%
Tropicamide
Forwarded from MCQ 3rd stage 🦋
The following is not adverse effect of atropine
Anonymous Quiz
20%
Confusion
62%
Bradycardia
8%
Dry mouth
3%
Blurred vision
7%
Urine retention
Forwarded from MCQ 3rd stage 🦋
Which drug is wrongly matched to its action in management of organophosphorus poising
Anonymous Quiz
20%
Atropine/for CNA and muscarinic effects
14%
Diazepam for convulsion
48%
Neostigmine/ for nicotinic effects
17%
Pralidoxime/cholinesterase regenerator
Forwarded from MCQ 3rd stage 🦋
Pyridostigmine is drug of choice in treatment of :
Anonymous Quiz
11%
Atropine toxicity
82%
Myasthenia Gravis
6%
Alzheimer
2%
Megacolon
Forwarded from MCQ 3rd stage 🦋
Forwarded from MCQ 3rd stage 🦋
Forwarded from MCQ 3rd stage 🦋
3. Which of the following is the best drug for distinguishing between myasthenic crisis (insufficient therapy) and cholinergic crisis (excessive therapy)?
Anonymous Quiz
9%
A) Atropine
73%
B) Edrophonium
8%
C) Physostigmine
4%
D) Pralidoxime
6%
E) Pyridostigmine
Forwarded from MCQ 3rd stage 🦋
5. Pyridostigmine and neostigmine may cause which one of the following?
Anonymous Quiz
12%
A) Bronchodilation
16%
B) Cycloplegia
39%
C) Diarrhea
22%
D) Irreversible inhibition of acetylcholinesterase
11%
E) Reduced gastric acid secretion
Forwarded from MCQ 3rd stage 🦋
6. Parasympathetic nerve stimulation and a slow infusion of bethanechol will each:
Anonymous Quiz
10%
A) Cause ganglion cell depolarization
13%
B) Cause skeletal muscle end plate depolarization
17%
C) Cause vasodilation
49%
D) Increase bladder tone
10%
E) Increase heart rate