The drug URECHOLINE for the management of urinary retention belongs to what class of drugs?
Adrenergic.
Anticholinergic.
Cholinergic.
Adrenergic Blocker.
The Correct Answer is C
Urecholine is the brand name of bethanechol, a drug that belongs to the class of cholinergics, genitourinary.
Choice A is wrong because adrenergic drugs are those that activate the sympathetic nervous system, which is responsible for the fight-or-flight response. Adrenergic drugs can cause relaxation of the bladder and urinary retention, not contraction and emptying.
Choice B is wrong because anticholinergic drugs are those that block the action of acetylcholine, a neurotransmitter that mediates the parasympathetic nervous system, which is responsible for the rest-and-digest response. Anticholinergic drugs can also cause relaxation of the bladder and urinary retention, not contraction and emptying.
Choice D is wrong because adrenergic blockers are those that inhibit the action of adrenergic receptors, which are activated by adrenergic drugs or by the natural neurotransmitters norepinephrine and epinephrine. Adrenergic blockers can have various effects on the bladder depending on the type and location of the receptors they block, but they are not used to treat urinary retention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Nitroglycerin sublingual is a medication that is used to treat chest pain or angina by relaxing the blood vessels and reducing the oxygen demand of the heart.A common side effect of nitroglycerin sublingual is headache, which may be severe and throbbing.Headache is often a sign that the medication is working.Other possible side effects include flushing, dizziness, lightheadedness, nausea, vomiting, fast heart rate, numbness, tingling, burning pain, rash, hives, sweating, pale skin, difficulty breathing and allergic reaction.
Choice A is wrong because nausea is not the most common adverse effect of nitroglycerin sublingual.Nausea may occur in some people, but it is usually mild and transient.
Choice B is wrong because bradycardia (slow heart rate) is not a common adverse effect of nitroglycerin sublingual.Nitroglycerin sublingual may cause tachycardia (fast heart rate) in some people as a result of vasodilation and reflex stimulation of the heart.
Choice C is wrong because hypertension (high blood pressure) is not a common adverse effect of nitroglycerin sublingual.Nitroglycerin sublingual may cause hypotension (low blood pressure) in some people due to its vasodilating action.Hypotension may lead to lightheadedness, fainting or shock in severe cases.
The normal range for blood pressure is less than 120/80 mmHg for adults.
The normal range for heart rate is 60 to 100 beats per minute for adults.
Correct Answer is C
Explanation
This is because potassium sparing diuretics do not lower potassium levels in the blood, unlike other types of diuretics.Potassium is an essential electrolyte that serves nerve and muscular functions and is regulated by the kidneys.Low potassium levels can cause irregular heartbeats and other problems. Therefore, patients taking potassium sparing diuretics should avoid food sources that are high in potassium, such as bananas, avocados, spinach, and potatoes.
Choice A is wrong because thiazide diuretics, such as hydrochlorothiazide, can cause low potassium levels in the blood.
Patients taking thiazide diuretics may need to take potassium supplements or eat more potassium-rich foods to prevent hypokalemia.
Choice B is wrong because osmotic diuretics, such as mannitol, do not affect potassium levels in the blood.
They work by increasing the amount of water in the urine, but do not alter the electrolyte balance.
Osmotic diuretics are mainly used to treat cerebral edema and glaucoma.
Choice D is wrong because loop diuretics, such as furosemide, can also cause low potassium levels in the blood.
They work by inhibiting the reabsorption of sodium and water in the loop of Henle, a part of the kidney.
Loop diuretics are used to treat edema and heart failure.
Normal ranges for potassium in the blood are 3.5 to 5.0 millimoles per liter (mmol/L).
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