WorksheetsBeta Blockers Quiz
Total questions: 20
Worksheet time: 10mins
Beta blockers act primarily by blocking
Alpha receptors
Beta adrenergic receptors
Dopamine receptors
Muscarinic receptors
Propranolol is classified as
β1 selective blocker
β2 selective blocker
Non-selective beta blocker
Alpha blocker
Labetalol blocks
β receptors only
α1 receptors only
β and α1 receptors
α2 receptors
Cardioselective beta blockers preferentially block
β1 receptors
β2 receptors
α receptors
M receptors
Example of a β1 selective blocker is
Propranolol
Nadolol
Atenolol
Timolol
Intrinsic sympathomimetic activity (ISA) is seen with
Propranolol
Atenolol
Pindolol
Timolol
Major cardiovascular action of beta blockers is
Increase heart rate
Decrease heart rate
Increase cardiac output
Cause vasodilation only
Beta blockers reduce blood pressure mainly by
Diuresis
Decreasing cardiac output and renin release
Direct vasodilation
Sodium retention
Therapeutic use of propranolol includes
Asthma
Hypertension
Bradycardia
AV block
Beta blockers are contraindicated in
Bronchial asthma
Hypertension
Angina pectoris
Thyrotoxicosis
Common adverse effect of non-selective beta blockers is
Hypoglycemia awareness
Bradycardia
Bronchodilation
Tachycardia
Beta blockers worsen asthma by blocking
β1 receptors
β2 receptors
α receptors
M receptors
Labetalol is useful in management of
Asthma
Hypertensive emergencies
Bradycardia
Shock
Selective β2 agonists are mainly used in
Hypertension
Heart failure
Bronchial asthma
Arrhythmias
Example of selective β2 agonist is
Propranolol
Salbutamol
Atenolol
Labetalol
β2 agonists cause bronchodilation by
Reducing mucus secretion
Relaxing bronchial smooth muscle
Blocking histamine receptors
Reducing inflammation
Common adverse effect of β2 agonists is
Bradycardia
Hypoglycemia
Tremors and tachycardia
Sedation
Long-acting β2 agonist used in asthma is
Salbutamol
Terbutaline
Salmeterol
Isoprenaline
Use of non-selective beta blockers in diabetics is risky due to
Hyperglycemia
Masking hypoglycemia
Weight loss
Insulin resistance
Beta blockers reduce mortality in
Acute asthma
Chronic heart failure
Septic shock
Anaphylaxis
