Scopolamine differs from atropine in that
Anonymous Quiz
5%
a.It does not cause tachycardia
0%
b.Absorbed from the skin
5%
c. Causes sedation , amnesia and hypnosis
0%
d.Ester of tropic acid and scopine base
53%
Only a ,c ,d
37%
All of the choices
Stimulation of B adrenergic receptor can lead to
Anonymous Quiz
0%
Elevation in plasma renin
0%
Elevation of FFA in blood
0%
Elevation of blood glucose
0%
Elevation of blood lactate
100%
All of the above
Therapeutic uses of amphetamine include
Anonymous Quiz
0%
Angina pectoris
0%
Hypertension
79%
ADHD
16%
bronchial asthma
5%
Anorexia
A 39-year-old man with a history of motion sickness. His physician
has prescribed a medication available in patch form to be placed
behind the ear prior to travel. Which of the following is the most appropriate pharmacotherapy for this patient?
has prescribed a medication available in patch form to be placed
behind the ear prior to travel. Which of the following is the most appropriate pharmacotherapy for this patient?
Anonymous Quiz
5%
Atropine
0%
Propranolol
5%
Pilocarpine
91%
Scopolamine
Choose the wrong statement about ephedrine
Anonymous Quiz
0%
An alkaloid drug derived from plant ephedra
0%
Is a non catecholamine
90%
Has a shot duration of action because it is rapidly metabolized by MOA
0%
it's rate of urinary excretion can be enhanced by acidification of urine by ascorbic acid
10%
It's action is of delayed onset and longer duration compared to adrenaline.
Alpha blockers can be used in treatment of
Anonymous Quiz
5%
Edema
20%
Postural hypotension
0%
Bronchial asthma
75%
Peripheral vascular disease
Pharmacodynamics of ephedrine include the following EXCEPT
Anonymous Quiz
6%
It stimulates adrenoceptors by dual mechanics "directly and indirectly "
12%
It has a +ve ino , chrono and dromotropic actions
18%
If injected in anesthetized animals it elevates ABP which is abolished not reversed by phentolamine
65%
It's CNS stimulation action is more powerful than amphetamine
0%
It causes direct contraction of urinary bladder sphincter.
Dobutamine differs from Dopamine in that
Anonymous Quiz
83%
It does not activate peripheral dopaminergic receptors
11%
It does not activate adrenergic Beta receptors
0%
It causes pronounced tachycardia
6%
It has good BBB penetrability
Therapeutic uses of amphetamine include
Anonymous Quiz
0%
Angina pectoris
0%
Hypertension
100%
ADHD
0%
Bronchial asthma
0%
Anorexia
One of the following is not an adverse effect of sympathomimetics :
Anonymous Quiz
16%
Cerebral hemorrhage
58%
Drug induced parkinsonism
5%
Ventricular arrythmias
21%
Myocardial infarction
NA is contraindicated in
Anonymous Quiz
0%
Shock
10%
With local anathesia
0%
Acute hypotensive state
90%
Hypertension
Ephedrine is used as an adjuvant drug in myasthenia gravis because:
Anonymous Quiz
11%
It stimulates directly Nm receptors in NMJ
11%
It dilates BVs of skeletal ms
0%
It inhibits Choline esterase enzyme and can be used as an alternative to neostigmine
11%
It facilitates NM transmission and allows rapid recovery from fatigue
68%
Both B AND D
Indicate the agent of choice in the emergency therapy of anaphylactic shock:
Anonymous Quiz
0%
Methoxamine
0%
Terbutaline
14%
Norepinephrine
86%
Epinephrine
All of the following are possible therapeutic uses of ephedrine except:
Anonymous Quiz
84%
Benign prostatic hyperplasia
5%
Prophylaxis against bronchial asthma
0%
Narcolepsy
0%
Nocturnal eneuresis
11%
Hypotension
Which of the following is a prodrug of adrenaline used topically in glaucoma
Anonymous Quiz
5%
Brimonidine
85%
Dipivefrine
5%
Phenylpropranolamine
5%
Dorzolamide
Concerning amphetamine
Anonymous Quiz
11%
It's a non catecholamine synthetic sympathomimetic
11%
Not metabolized by MAO inhibitor but giving MAOI with amphetamine can cause severe hypertension
0%
It acts by stimulating the release of NE from adrenergic nerve endings
6%
It's a potent CNS stimulat highly addictive drug
72%
All of the above
Which of the following is an Atropine substitute not matched correctly with its use :
Anonymous Quiz
0%
Hyoscine butyl bromide in colic
90%
Tiotropium in urinary incontinence
0%
Tropicamide for eye fundus examination
10%
Benztropine in parkinsonism
A 44-year-old man comes to his physician complaining of
intermittent fatigue. On physical examination he exhibits drooping
eyelids. Administration of which of the following agents is most appropriate to confirm a diagnosis of myasthenia gravis?
intermittent fatigue. On physical examination he exhibits drooping
eyelids. Administration of which of the following agents is most appropriate to confirm a diagnosis of myasthenia gravis?
Anonymous Quiz
0%
Adrenaline
91%
Edrophonium
5%
Bethanecol
5%
Physostigmine
Indications of isoprenaline include :
Anonymous Quiz
4%
Acute attacks of bronchial asthma
4%
AV block
4%
Acute attacks of angina
4%
Ventricular arrythmias
83%
Both a and b
Concerning dopamine choose the false statement:
Anonymous Quiz
0%
It's pharmacological actions depend on the rate of IV infusion
5%
Its pharmacological actions are exaggerated in patients receiving MAO inhibitors
10%
Its pharmacological actions can be theoretically blocked byhaloperidol ,propranolol and phentolamine
85%
It has more positive chronotropic than inotropic action
Propranolol has the following actions except:
Anonymous Quiz
4%
Negative chronotropic
75%
Initial stimulation of beta receptors followed by block
4%
Hypotensive action on prolonged use
8%
Anti- anginal action in stable angina.
8%
Anti anxiety action