The following vasodilator(s) act(s) by opening K+ channels in the vascular smooth muscle: A. Dipyridamole B. Minoxidil C. Diazoxide D. Both ‘B’ and ‘C’

The following vasodilator(s) act(s) by opening K+
channels in the vascular smooth muscle:
A. Dipyridamole
B. Minoxidil
C. Diazoxide
D. Both ‘B’ and ‘C’
by

1 Answer

Answer :

D. Both ‘B’ and ‘C
by

Related questions

Select the vasodilator that is administered only by slow intravenous infusion and dilates both resistance as well as capacitance vessels: A. Minoxidil B. Diazoxide C. Sodium nitroprusside D. Glyceryl trinitrate

Description : Select the vasodilator that is administered only by slow intravenous infusion and dilates both resistance as well as capacitance vessels: A. Minoxidil B. Diazoxide C. Sodium nitroprusside D. Glyceryl trinitrate

Last Answer : C. Sodium nitroprusside

Select the drug which is a potassium channel opener as well as nitric oxide donor: A. Diazoxide B. Sodium nitroprusside C. Minoxidil D. Nicorandil

Description : Select the drug which is a potassium channel opener as well as nitric oxide donor: A. Diazoxide B. Sodium nitroprusside C. Minoxidil D. Nicorandil

Last Answer : D. Nicorandil

Tolerance does not develop to the vasodilator action of sodium nitroprusside while it develops to glyceryl trinitrate because: A. Intact sod. nitroprusside molecule acts like nitric oxide B. Enzymes which generate nitric oxide from nitroprusside are different C. Sod. nitroprusside has a long duration of action D. Sod. nitroprusside has additional K+ channel opening action

Description : Tolerance does not develop to the vasodilator action of sodium nitroprusside while it develops to glyceryl trinitrate because: A. Intact sod. nitroprusside molecule acts like nitric oxide B. Enzymes which ... a long duration of action D. Sod. nitroprusside has additional K+ channel opening action

Last Answer : B. Enzymes which generate nitric oxide from nitroprusside are different

Organic nitrates relax vascular smooth muscle by: A. Increasing intracellular cyclic GMP B. Increasing intracellular cyclic AMP C. Decreasing intracellular cyclic AMP D. Both ‘A’ and ‘C’ are correct

Description : Organic nitrates relax vascular smooth muscle by: A. Increasing intracellular cyclic GMP B. Increasing intracellular cyclic AMP C. Decreasing intracellular cyclic AMP D. Both ‘A’ and ‘C’ are correct

Last Answer : A. Increasing intracellular cyclic GMP

The following tissue is most sensitive to vasopressin: A. Renal collecting ducts B. Intestinal smooth muscle C. Vascular smooth muscle D. Uterus

Description : The following tissue is most sensitive to vasopressin: A. Renal collecting ducts B. Intestinal smooth muscle C. Vascular smooth muscle D. Uterus

Last Answer : A. Renal collecting ducts

Select the tissue that is most sensitive to oxytocin: A. Myometrium B. Myoepithelium of mammary alveoli C. Vascular smooth muscle D. Renal collecting ducts

Description : Select the tissue that is most sensitive to oxytocin: A. Myometrium B. Myoepithelium of mammary alveoli C. Vascular smooth muscle D. Renal collecting ducts

Last Answer : B. Myoepithelium of mammary alveoli

Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It is a synthetic atropine substitute used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Description : Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It ... used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Last Answer : A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms

Choose the correct statement about nateglinide: A. It is a long acting oral hypoglycaemic drug B. Taken just before a meal, it limits postprandial hyperglycaemia in type 2 diabetes mellitus C. It lowers blood glucose in both type 1 and type 2 diabetes mellitus D. It acts by opening K+ channels in myocytes and adipocytes

Description : Choose the correct statement about nateglinide: A. It is a long acting oral hypoglycaemic drug B. Taken just before a meal, it limits postprandial hyperglycaemia in type 2 diabetes mellitus C. It lowers ... 1 and type 2 diabetes mellitus D. It acts by opening K+ channels in myocytes and adipocytes

Last Answer : B. Taken just before a meal, it limits postprandial hyperglycaemia in type 2 diabetes mellitus

At the muscle end-plate, d-tubocurarine reduces the: A. Number of Na+ channels B. Duration for which the Na+ channels remain open C. Ion conductance of the open Na+ channel D. Frequency of Na+ channel opening

Description : At the muscle end-plate, d-tubocurarine reduces the: A. Number of Na+ channels B. Duration for which the Na+ channels remain open C. Ion conductance of the open Na+ channel D. Frequency of Na+ channel opening

Last Answer : D. Frequency of Na+ channel opening

The opioid antidiarrhoeal drugs act by the following mechanism(s): A. They relax the intestinal smooth muscle B. They inhibit intestinal peristalsis C. They promote clearance of intestinal pathogens Aim4aiims.in D. All of the above

Description : The opioid antidiarrhoeal drugs act by the following mechanism(s): A. They relax the intestinal smooth muscle B. They inhibit intestinal peristalsis C. They promote clearance of intestinal pathogens Aim4aiims.in D. All of the above

Last Answer : B. They inhibit intestinal peristalsis

Diazoxide is an effective hypotensive, but is not used in the long-term treatment of hypertension because: A. It impairs glucose tolerance by inhibiting insulin release B. It inhibits uric acid excretion C. It causes marked Na+ and water retention leading to development of tolerance D. All of the above

Description : Diazoxide is an effective hypotensive, but is not used in the long-term treatment of hypertension because: A. It impairs glucose tolerance by inhibiting insulin release B. It inhibits uric acid ... causes marked Na+ and water retention leading to development of tolerance D. All of the above

Last Answer : D. All of the above

Ergotamine relieves migraine by: A. Blocking vascular α adrenergic receptors B. Blocking vascular 5-HT2 receptors C. Dilating cranial arterio-venous shunt channels D. Constricting cranial vessels and reducing perivascular neurogenic inflammation

Description : Ergotamine relieves migraine by: A. Blocking vascular α adrenergic receptors B. Blocking vascular 5-HT2 receptors C. Dilating cranial arterio-venous shunt channels D. Constricting cranial vessels and reducing perivascular neurogenic inflammation

Last Answer : D. Constricting cranial vessels and reducing perivascular neurogenic inflammation

Combined therapy with dipyridamole and warfarin is recommended in subjects with the following: A. Risk factors for coronary artery disease B. Prosthetic heart valves C. Cerebral thrombosis D. Buerger's disease

Description : Combined therapy with dipyridamole and warfarin is recommended in subjects with the following: A. Risk factors for coronary artery disease B. Prosthetic heart valves C. Cerebral thrombosis D. Buerger's disease

Last Answer : B. Prosthetic heart valves

Choose the drug which alters surface receptors on platelet membrane to inhibit aggregation, release reaction and to improve platelet survival in extracorporeal circulation: A. Dipyridamole B. Ticlopidine C. Aspirin D. Heparin

Description : Choose the drug which alters surface receptors on platelet membrane to inhibit aggregation, release reaction and to improve platelet survival in extracorporeal circulation: A. Dipyridamole B. Ticlopidine C. Aspirin D. Heparin

Last Answer : B. Ticlopidine

The following drug increases cyclic-AMP in platelets and inhibits their aggregation without altering levels of thromboxane A2 or prostacyclin: A. Aspirin B. Sulfinpyrazone C. Dipyridamole D. Abciximab

Description : The following drug increases cyclic-AMP in platelets and inhibits their aggregation without altering levels of thromboxane A2 or prostacyclin: A. Aspirin B. Sulfinpyrazone C. Dipyridamole D. Abciximab

Last Answer : C. Dipyridamole

‘Coronary steal phenomenon’ has been noted most frequently with: A. Glyceryl trinitrate B. Dipyridamole C. Propranolol D. Diltiazem

Description : ‘Coronary steal phenomenon’ has been noted most frequently with: A. Glyceryl trinitrate B. Dipyridamole C. Propranolol D. Diltiazem

Last Answer : B. Dipyridamole

Select the drug that may improve myocardial tolerance to ischaemia and reduce anginal attacks without altering heart rate, blood pressure or myocardial O2 consumption: A. Trimetazidine B. Nicorandil C. Dipyridamole D. Nicotinic acid

Description : Select the drug that may improve myocardial tolerance to ischaemia and reduce anginal attacks without altering heart rate, blood pressure or myocardial O2 consumption: A. Trimetazidine B. Nicorandil C. Dipyridamole D. Nicotinic acid

Last Answer : A. Trimetazidine

Which of the following drugs is most likely to accentuate varient (Prinzmetal) angina: A. Propranolol B. Atenolol C. Verapamil D. Dipyridamole

Description : Which of the following drugs is most likely to accentuate varient (Prinzmetal) angina: A. Propranolol B. Atenolol C. Verapamil D. Dipyridamole

Last Answer : A. Propranolol

The following drug is used to reduce the frequency of angina pectoris as well as to terminate an acute attack: A. Isosorbide dinitrate B. Pentaerythritol tetranitrate C. Diltiazem D. Dipyridamole

Description : The following drug is used to reduce the frequency of angina pectoris as well as to terminate an acute attack: A. Isosorbide dinitrate B. Pentaerythritol tetranitrate C. Diltiazem D. Dipyridamole

Last Answer : A. Isosorbide dinitrate

The primary mechanism of action of benzodiazepines is: A. Dopamine antagonism B. Adenosine antagonism C. Opening of neuronal chloride channels D. Facilitation of GABA-mediated chloride influx

Description : The primary mechanism of action of benzodiazepines is: A. Dopamine antagonism B. Adenosine antagonism C. Opening of neuronal chloride channels D. Facilitation of GABA-mediated chloride influx

Last Answer : D. Facilitation of GABA-mediated chloride influx

Organic nitrates relax vascular smooth muscle by (a) Increasing intracellular cyclic AMP (b) Increasing intracellular cyclic GMP (c) Decreasing intracellular cyclic AMP (d) Both (b) and (c)

Description : Organic nitrates relax vascular smooth muscle by (a) Increasing intracellular cyclic AMP (b) Increasing intracellular cyclic GMP (c) Decreasing intracellular cyclic AMP (d) Both (b) and (c)

Last Answer : Ans: B

The following antihypertensive is used topically to treat alopacia areata: A. Hydralazine B. Prazosin C. Minoxidil D. Indapamide

Description : The following antihypertensive is used topically to treat alopacia areata: A. Hydralazine B. Prazosin C. Minoxidil D. Indapamide

Last Answer : C. Minoxidil

Which of the following is a steroid 5α-reductase inhibitor that has been found useful in benign prostatic hypertrophy and male pattern baldness: A. Flutamide B. Finasteride C. Prazosin D. Minoxidil

Description : Which of the following is a steroid 5α-reductase inhibitor that has been found useful in benign prostatic hypertrophy and male pattern baldness: A. Flutamide B. Finasteride C. Prazosin D. Minoxidil

Last Answer : B. Finasteride

The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Description : The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Last Answer : C. Muscle end-plate

Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Description : Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Last Answer : B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates

Angiotensin III is equipotent to angiotensin II in: A. Releasing aldosterone from adrenal cortex B. Promoting Na+ and water reabsorption by direct intrarenal action C. Causing vasoconstriction D. Contracting intestinal smooth muscle

Description : Angiotensin III is equipotent to angiotensin II in: A. Releasing aldosterone from adrenal cortex B. Promoting Na+ and water reabsorption by direct intrarenal action C. Causing vasoconstriction D. Contracting intestinal smooth muscle

Last Answer : A. Releasing aldosterone from adrenal cortex

Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Description : Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Last Answer : Ans: B

Regarding verapamil, which one of the following statements is false? (a) Angina pectoris is an important indication for the use of verapamil (b) Contraindicated in the asthmatic patient (c) Relaxes vascular smooth muscle (d) Slows the depolarization phase of the action potential in AV nodal cells (e) Used in management of supraventricular tachycardias

Description : Regarding verapamil, which one of the following statements is false? (a) Angina pectoris is an important indication for the use of verapamil (b) Contraindicated in the asthmatic patient (c) ... phase of the action potential in AV nodal cells (e) Used in management of supraventricular tachycardias

Last Answer : Ans: B

Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Description : Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Last Answer : Answers-5 Leukotrienes are synthesized by leucocytes.They are mediators of allergic reaction. They increase vascular permeability and attract neutrophils and eosinophils to inflammatory sites. ... stimulate mucus production, an important consideration in the pathophysiology of bronchial asthma.

The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Description : The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Last Answer : all

The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Description : The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Last Answer : B. Direct action on vascular smooth muscle causing vasodilatation

Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It is a synthetic atropine substitute used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Description : Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It ... used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Last Answer : A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms

The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Description : The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Last Answer : B. Direct action on vascular smooth muscle causing vasodilatation

Hydralazine is a directly acting vasodilator, but is not used alone as an antihypertensive because: A. By itself, it is a low efficacy antihypertensive B. Effective doses cause marked postural hypotension C. Tolerance to the antihypertensive action develops early due to counterregulatory mechanisms D. It primarily reduces systolic blood pressure with little effect on diastolic blood pressure

Description : Hydralazine is a directly acting vasodilator, but is not used alone as an antihypertensive because: A. By itself, it is a low efficacy antihypertensive B. Effective doses cause marked ... mechanisms D. It primarily reduces systolic blood pressure with little effect on diastolic blood pressure

Last Answer : C. Tolerance to the antihypertensive action develops early due to counterregulatory mechanisms

Select the drug which can markedly potentiate the vasodilator action of organic nitrates: A. Propranolol B. Fluoxetine C. Hydrochlorothiazide D. Sildenafil

Description : Select the drug which can markedly potentiate the vasodilator action of organic nitrates: A. Propranolol B. Fluoxetine C. Hydrochlorothiazide D. Sildenafil

Last Answer : D. Sildenafil

Which vasodilator is most suitable for a patient of CHF who is symptomatic even at rest and has a central venous pressure of 25 mm Hg and cardiac index 1.8 L/min/m2 : A. Glyceryl trinitrate B. Enalapril C. Hydralazine D. Nifedipine

Description : Which vasodilator is most suitable for a patient of CHF who is symptomatic even at rest and has a central venous pressure of 25 mm Hg and cardiac index 1.8 L/min/m2 : A. Glyceryl trinitrate B. Enalapril C. Hydralazine D. Nifedipine

Last Answer : B. Enalapril

The following type of vasodilator is not beneficial in CHF due to systolic dysfunction: A. Calcium channel blocker B. Angiotensin converting enzyme inhibitor C. Nitrate D. Hydralazine

Description : The following type of vasodilator is not beneficial in CHF due to systolic dysfunction: A. Calcium channel blocker B. Angiotensin converting enzyme inhibitor C. Nitrate D. Hydralazine

Last Answer : A. Calcium channel blocker

Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger’s disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss of sympathetic innervation C. Blood flow to the affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Description : Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger's disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss ... affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Last Answer : C. Blood flow to the affected limb is reduced by organic obstruction

Tolerance is generally not acquired to: A. Antisecretory action of atropine B. Sedative action of chlorpromazine C. Emetic action of levodopa D. Vasodilator action of nitrates

Description : Tolerance is generally not acquired to: A. Antisecretory action of atropine B. Sedative action of chlorpromazine C. Emetic action of levodopa D. Vasodilator action of nitrates

Last Answer : A. Antisecretory action of atropine

Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger’s disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss of sympathetic innervation C. Blood flow to the affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Description : Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger's disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss ... affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Last Answer : C. Blood flow to the affected limb is reduced by organic obstruction

Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Description : Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Last Answer : B. Electrogenic Na+ channels

Aldosterone increases Na+ reabsorption and K+ excretion in the renal collecting duct cells by: A. Inducing synthesis of Na+K+ATPase B. Inducing synthesis of amiloride sensitive Na+ channels C. Translocating Na+ channels from cytosolic site to luminal membrane D. All of the above

Description : Aldosterone increases Na+ reabsorption and K+ excretion in the renal collecting duct cells by: A. Inducing synthesis of Na+K+ATPase B. Inducing synthesis of amiloride sensitive Na+ channels C. Translocating Na+ channels from cytosolic site to luminal membrane D. All of the above

Last Answer : D. All of the above

The following is not true of quinidine: A. It blocks myocardial Na+ channels primarily in the open state B. It has no effect on myocardial K+ channels C. It produces frequency dependent blockade of myocardial Na+ channels D. It delays recovery of myocardial Na+ channels

Description : The following is not true of quinidine: A. It blocks myocardial Na+ channels primarily in the open state B. It has no effect on myocardial K+ channels C. It produces frequency dependent blockade of myocardial Na+ channels D. It delays recovery of myocardial Na+ channels

Last Answer : B. It has no effect on myocardial K+ channels

Select the antihistaminic which blocks cardiac K+ channels when given in high doses or along with drugs that inhibit CYP3A4 isoenzyme: A. Chlorpheniramine B. Promethazine C. Astemizole D. Loratadine

Description : Select the antihistaminic which blocks cardiac K+ channels when given in high doses or along with drugs that inhibit CYP3A4 isoenzyme: A. Chlorpheniramine B. Promethazine C. Astemizole D. Loratadine

Last Answer : C. Astemizole

Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells of cochlea results in the opening of the mechanically gated potassium-ion channels. (c) Rods are very sensitive and contribute to daylight vision. (d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.

Description : Which of the following statements is not correct? (a) An action potential in an axon does not move backward because the segment behind is in a refractory phase. (b) Depolarisation of hair cells ... d) In the knee-jerk reflex, stimulus is the stretching of muscle and response is its contraction.

Last Answer : (c) Rods are very sensitive and contribute to daylight vision.

The mechanism of action of barbiturates differs from that of benzodiazepines in that they: A. Do not affect the GABA-benzodiazepine receptor-chloride channel complex B. Act as inverse agonists at the benzodiazepine receptor C. Increase the frequency of chloride channel opening without affecting its life time D. Have both GABA-facilitatory as well as GABA-mimetic actions

Description : The mechanism of action of barbiturates differs from that of benzodiazepines in that they: A. Do not affect the GABA-benzodiazepine receptor-chloride channel complex B. Act as inverse agonists at the ... without affecting its life time D. Have both GABA-facilitatory as well as GABA-mimetic actions

Last Answer : D. Have both GABA-facilitatory as well as GABA-mimetic actions

The principal action common to all class I antiarrhythmic drugs is: A. Na+ channel blockade B. K+ channel opening C. Depression of impulse conduction D. Prolongation of effective refractory period

Description : The principal action common to all class I antiarrhythmic drugs is: A. Na+ channel blockade B. K+ channel opening C. Depression of impulse conduction D. Prolongation of effective refractory period

Last Answer : A. Na+ channel blockade

A 70-year-old patient presented with weakness, tiredness and muscle cramps. The ECG showed Q-T prolongation, flattening of T wave and occasional A-V block. His serum K+ was low (2.8 mEq/L). He admitted taking a laxative every day for the past several months. Which laxative could be responsible for the above condition: A. Bisacodyl B. Liquid paraffin C. Methylcellulose D. Bran

Description : A 70-year-old patient presented with weakness, tiredness and muscle cramps. The ECG showed Q-T prolongation, flattening of T wave and occasional A-V block. His serum K+ was low (2.8 mEq ... could be responsible for the above condition: A. Bisacodyl B. Liquid paraffin C. Methylcellulose D. Bran

Last Answer : A. Bisacodyl

Select the skeletal muscle relaxant that is commonly used for endotracheal intubation despite causing histamine release, K+ efflux from muscles and cardiovascular changes: A. Pipecuroniun B. Succinylcholine C. Pancuronium D. Cisatracurium

Description : Select the skeletal muscle relaxant that is commonly used for endotracheal intubation despite causing histamine release, K+ efflux from muscles and cardiovascular changes: A. Pipecuroniun B. Succinylcholine C. Pancuronium D. Cisatracurium

Last Answer : B. Succinylcholine

The characteristic feature(s) of dihydropyridine calcium channel blockers is/are: A. They have minimal negative inotropic action on the heart B. They have no effect on A-V conduction C. They do not affect the activation-inactivation kinetics of the calcium channels D. All of the above

Description : The characteristic feature(s) of dihydropyridine calcium channel blockers is/are: A. They have minimal negative inotropic action on the heart B. They have no effect on A-V conduction C. They do not affect the activation-inactivation kinetics of the calcium channels D. All of the above

Last Answer : D. All of the above