Regarding the adverse effects of atropine , choose the wrong one
Anonymous Quiz
7%
Xerostomia
4%
Xerophthalmia
67%
Diarrhea
22%
Urine retention
Scopolamine differs from atropine in that
Anonymous Quiz
13%
a.It does not cause tachycardia
0%
b.Absorbed from the skin
0%
c. Causes sedation , amnesia and hypnosis
8%
d.Ester of tropic acid and scopine base
50%
Only a ,c ,d
29%
All of the choices
Hyoscine is preferred to atropine as pre-anasthetic medication in thyrotoxic patients because:
Anonymous Quiz
0%
Hyoscine does not cause mydriasis
0%
Hyoscine does not decrease bronchial and salivary secretion
0%
Hyoscine does not stimulate RC
100%
Hyoscine does not cause tachycardia
0%
Hyoscine has no antiemetic action
Actions of Beta 1 receptor stimulation include :
Anonymous Quiz
4%
Cardiac stimulation
0%
Increase in FFA in plasma
0%
Increase in sympathetic outflow from CNS
0%
Increase in serum renin
96%
All of the above
Cardiac B1 receptors induce the following actions except:
Anonymous Quiz
0%
Positive inotropic action
0%
Positive chronotropic action
0%
Positive dromotropic action
100%
Reduction of cardiac work
0%
Increase in excitability
Stimulation of B2 receptors can induce which of the following actions?
Anonymous Quiz
0%
Bronchoconstriction
12%
Vc of coronaries and skeletal ms BV
6%
Reduction of aqeuous humor synthesis
0%
Contraction of detrusor ms
82%
Tocolytic action on pregnant uterus
Activation of B2 receptors in skeletal ms leads to the following actions except
Anonymous Quiz
0%
Tremors
0%
Vasodilatation of BV supplying the skeletal ms
0%
Glycogenolysis anc increase in blood lactate
82%
Hyperkalemia
18%
All of the above
Stimulation of B adrenergic receptor can lead to
Anonymous Quiz
0%
Elevation in plasma renin
6%
Elevation of FFA in blood
0%
Elevation of blood glucose
0%
Elevation of blood lactate
94%
All of the above
Alpha 1 adrenergic receptors have the following features except :
Anonymous Quiz
14%
Are Gq coupled
0%
Induce vc of blood vessels especially in skin and mucous membrane
14%
Cause contraction of urinary bladder sphincter
71%
Cause passive mydriasis
0%
Induce ejaculation of semen
Alpha 2 adrenoceptors are characterized by the following EXCEPT
Anonymous Quiz
0%
Having an inhibitory effect on sympathetic outflow
0%
Reduce IOP by decreasing aqueous humor formation
100%
Stimulation of noradreanalin release from adrenergic neurons
0%
Inhibition of renin release from juxtaglomerular cells .
Application of Dipivefrine (lipophilic alpha 1 agonist) to the eye can result in :
Anonymous Quiz
8%
A.Active mydriasis
0%
B.Passive mydriasis
23%
C.Decongistion of conjunctival blood vessels
0%
D.Miosis
69%
E.Both A and C
Application of beta antagonists to the eye can cause:
Anonymous Quiz
33%
Miosis
0%
Cycloplegia
67%
Decrease in IOP
0%
Loss of light reflex
0%
Xerophthalmia
Systemic administration of phentolamine can lead to the following EXCEPT:
Anonymous Quiz
8%
Hypotension
8%
Relaxation of urinary bladder sphincter and trigone
17%
Loss of sweat secretion from palm and sole
67%
Bronchodilatation
0%
Failure of ejaculation in males
Local application of adrenalin to normal eye causes:
Anonymous Quiz
7%
Active mydriasis
21%
Passive mydriasis
0%
Miosis
71%
Decongestion in cases of conjunctival congestion
0%
Xerophthalmia
Metabolic actions of adrenaline include all the following EXCEPT:
Anonymous Quiz
0%
High plasma renin level
0%
High plasma FFA level
0%
Calirogenic action
93%
Hypoglycemia
7%
High plasma lactate level
Which is the true statement about Atropine?
Anonymous Quiz
0%
Is derived of plant origin
0%
Is a tertiary amine
0%
Is not absorbed from intact skin
0%
Is a non selective competitive muscarinic antagonist.
100%
All of the above
Pharmacological actions of atropine include the following EXCEPT
Anonymous Quiz
0%
Tachycardia
87%
Active mydriasis
0%
Antispasmodic
13%
Antiemetic
0%
Antiparkinsonian
Which of the following is not a CNS action of atropine?
Anonymous Quiz
94%
Antiemetic in motion sickness
0%
RC stimulation
0%
CIC stimulation
6%
Inhibtion of tremors and rigidity in parkinsonism
Application of atropine as eye drops leads to
Anonymous Quiz
0%
Lacrimation
17%
Reduction of IOP
0%
Eyelid twitches
78%
Cyclopegia
6%
Miosis
Therapeutic use of atropine include the following EXCEPT
Anonymous Quiz
0%
Treatment of vagotonia in vasovagsl attack and carotid sinus syndrome
6%
Treatment of colics snd diarrhea
81%
Treatment of urine retention ( non obstructive)
0%
Fundus examination
13%
Treatment of hyperhydrosis