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WorksheetsAlpha Blockers Quiz
Total questions: 20
Worksheet time: 10mins
Alpha-adrenergic blockers primarily block which receptors?
Beta-1 receptors
Beta-2 receptors
Alpha receptors
Muscarinic receptors
Alpha blockers cause vasodilation by blocking
Alpha-1 receptors in vessels
Beta-2 receptors in lungs
Alpha-2 receptors in CNS
Muscarinic receptors
Selective alpha-1 blocker used in hypertension is
Propranolol
Prazosin
Phenoxybenzamine
Clonidine
Non-selective irreversible alpha blocker is
Phentolamine
Prazosin
Phenoxybenzamine
Atenolol
Phentolamine is classified as
Selective alpha-1 blocker
Non-selective alpha blocker
Beta blocker
Alpha-2 agonist
Major therapeutic use of alpha blockers is
Asthma
Hypertension
Diabetes
Epilepsy
Alpha blockers are useful in pheochromocytoma because they
Reduce catecholamine synthesis
Block catecholamine effects
Increase insulin release
Decrease cortisol secretion
Postural hypotension is commonly seen with
Propranolol
Prazosin
Atenolol
Clonidine
Reflex tachycardia is more common with
Selective alpha-1 blockers
Non-selective alpha blockers
Beta blockers
Alpha-2 agonists
Alpha blockers relax smooth muscle of
Prostate and bladder neck
Bronchi
Intestine only
Heart muscle
Drug commonly used in benign prostatic hyperplasia is
Propranolol
Prazosin
Phenoxybenzamine
Metoprolol
Adrenaline acts on
Alpha only
Beta only
Both alpha and beta receptors
Muscarinic receptors
Noradrenaline predominantly acts on
Beta-2 receptors only
Alpha and beta-1 receptors
Beta-1 only
Muscarinic receptors
Effect of adrenaline on heart rate is
Decreases heart rate
No effect
Increases heart rate
Stops heart
Effect of noradrenaline on heart rate is
Tachycardia
No change
Reflex bradycardia
Arrhythmia
Adrenaline causes bronchodilation due to action on
Beta-1 receptors
Beta-2 receptors
Alpha-1 receptors
Muscarinic receptors
Noradrenaline has minimal effect on
Blood pressure
Heart contractility
Bronchial smooth muscle
Vascular tone
Drug of choice in anaphylactic shock is
Noradrenaline
Adrenaline
Dopamine
Phenylephrine
Noradrenaline is preferred in treatment of
Anaphylaxis
Bronchial asthma
Septic shock
Cardiac arrest
Major adverse effect of alpha blockers is
Bradycardia
Postural hypotension
Constipation
Bronchospasm
