Quiz on sympatholytics ✓ Passing Score: 50% 📝 Questions: 19 🎓 Practice Quiz Welcome! This is a practice quiz to test your knowledge. Please enter your details below to participate. Your results will be emailed to you upon completion. Your Information Name * Email * Start Quiz → Question 1 of 19 1 Which of the following is a common side effect associated with beta-adrenergic blockers? * Dry mouth Bronchoconstriction Increased sweating Tachycardia Urinary retention 2 Reserpine, a sympatholytic, works by: * Causing release of acetylcholine Directly stimulating beta receptors Blocking postsynaptic adrenergic receptors Inhibiting the vesicular monoamine transporter (VMAT) Blocking alpha-2 receptors centrally 3 Sympatholytics are drugs that primarily exert their effects by: * Blocking beta-adrenergic receptors Increasing sympathetic nervous system activity Mimicking the action of acetylcholine at muscarinic receptors Stimulating alpha-adrenergic receptors Inhibiting the release of norepinephrine from sympathetic nerve terminals 4 Labetalol is unique among sympatholytics because it possesses: * Selective alpha-2 agonism Selective beta-1 blockade only Peripheral vasodilation via direct action on smooth muscle Alpha-1 blockade and non-selective beta blockade Norepinephrine synthesis inhibition 5 A patient taking a beta-adrenergic blocker for hypertension may experience which of the following? * Diarrhea Insomnia Increased libido Increased appetite Reduced exercise tolerance 6 Which of the following is a characteristic side effect of alpha-adrenergic blockers when used for hypertension? * Constipation Bradycardia Weight gain First-dose syncope (orthostatic hypotension) Bronchospasm 7 Methyldopa is a centrally acting sympatholytic that is often used in: * The acute management of hypertensive emergencies The management of severe allergic reactions Patients with Parkinson\\\\\\\'s disease The treatment of glaucoma Pregnant women with hypertension 8 Which of the following sympatholytic mechanisms indirectly reduces sympathetic stimulation by preventing the reuptake of norepinephrine into presynaptic neurons, thus increasing its concentration in the synaptic cleft and leading to negative feedback on sympathetic outflow? * Norepinephrine depletion Direct alpha-1 blockade Beta-adrenergic blockade Alpha-2 adrenergic agonism Ganglionic blockade 9 Which of the following sympatholytics is primarily used to treat benign prostatic hyperplasia (BPH) due to its effect on smooth muscle relaxation in the prostate and bladder neck? * Clonidine Atenolol Reserpine Prazosin Propranolol 10 Prazosin is an example of which type of sympatholytic? * Norepinephrine reuptake inhibitor Non-selective beta-blocker Alpha-1 adrenergic blocker Alpha-2 adrenergic agonist Selective beta-1 blocker 11 Guanethidine, a sympatholytic, works by: * Blocking muscarinic receptors Inhibiting dopamine synthesis Increasing parasympathetic tone Stimulating alpha-1 receptors Blocking norepinephrine release from sympathetic nerve terminals 12 Which of the following is a primary mechanism of action for alpha-adrenergic blockers? * Stimulating beta-2 receptors in the lungs Inhibiting acetylcholinesterase Increasing parasympathetic outflow Blocking the effects of norepinephrine at alpha-1 receptors in blood vessels Decreasing heart rate and contractility 13 Which class of sympatholytics is commonly used to treat hypertension by reducing cardiac output and heart rate? * Centrally acting sympatholytics Ganglionic blockers Alpha-adrenergic blockers Beta-adrenergic blockers Direct-acting vasodilators 14 Clonidine is an example of which type of sympatholytic? * Alpha-2 adrenergic agonist Beta-adrenergic blocker Alpha-1 adrenergic blocker Ganglionic blocker Serotonin receptor antagonist 15 Which of the following sympatholytics would be contraindicated in a patient with severe asthma? * Metoprolol (selective beta-1 blocker) Prazosin Guanfacine Phenoxybenzamine (irreversible alpha blocker) Labetalol (non-selective beta and alpha blocker) 16 Which of the following is a significant concern when administering non-selective beta-blockers to patients with diabetes? * Increased blood glucose levels Reduced insulin secretion Development of diabetic ketoacidosis Masking of hypoglycemia symptoms (e.g., tachycardia, tremor) 17 Which sympatholytic agent works by blocking the reuptake of norepinephrine into sympathetic nerve terminals, thereby increasing sympathetic stimulation? * Phenoxybenzamine Phentolamine Cocaine Guanethidine Prazosin 18 Which of the following is a potential adverse effect of ganglionic blockers like hexamethonium? * Mydriasis (pupil dilation) Dry mouth and blurred vision (anticholinergic effects) Bradycardia Hypertension Constipation 19 The \\\\\\\"rebound hypertension\\\\\\\" phenomenon is most commonly associated with the abrupt withdrawal of which class of sympatholytics? * Ganglionic blockers Alpha-adrenergic blockers Norepinephrine depleters Beta-adrenergic blockers Centrally acting sympatholytics (e.g., clonidine) ← Previous Next → Submit Quiz ✓