A nurse is reviewing the health record of a client who asks about using propranolol to treat hypertension.
The nurse should recognize which of the following conditions is a contraindication for taking propranolol?
Tachycardia.
Asthma.
Hypertension.
Glaucoma.
The Correct Answer is B
Propranolol is a beta-blocker that can cause bronchoconstriction and worsen asthma symptoms.
Asthma is a reversible airway disease that is a contraindication for taking propranolol.
Choice A, tachycardia, is not a contraindication for taking propranolol. In fact, propranolol can be used to treat some types of tachycardia, such as atrial fibrillation or supraventricular tachycardia, by slowing down the heart rate.
Choice C, hypertension, is not a contraindication for taking propranolol. Propranolol can be used to treat hypertension by reducing the cardiac output and peripheral resistance.
Choice D, glaucoma, is not a contraindication for taking propranolol. Propranolol does not affect the intraocular pressure or the aqueous humor production. However, some other beta-blockers, such as timolol, can be used to treat glaucoma by lowering the intraocular pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is because low potassium levels (hypokalemia) increase the sensitivity of the heart to digoxin and can lead to toxicity even with normal serum digoxin levels. Digoxin inhibits the sodium-potassium pump on the cardiac cells, which causes potassium to accumulate outside the cells.Low potassium levels in the blood create a larger gradient for potassium to move out of the cells, which enhances the effect of digoxin and can cause arrhythmias.
Choice B is wrong because calcium 9.2 mg/dL is within the normal range (8.5 to 10.2 mg/dL) and does not increase the risk of digoxin toxicity.However, high calcium levels (hypercalcemia) can potentiate the effects of digoxin and cause toxicity.
Choice C is wrong because sodium 140 mEq/L is within the normal range (135 to 145 mEq/L) and does not increase the risk of digoxin toxicity.However, high sodium levels (hypernatremia) can reduce the binding of digoxin to the sodium-potassium pump and decrease its efficacy.
Choice D is wrong because magnesium 2.2 mg/dL is within the normal range (1.7 to 2.4 mg/dL) and does not increase the risk of digoxin toxicity.However, low magnesium levels (hypomagnesemia) can increase the sensitivity of the heart to digoxin and cause toxicity.
Correct Answer is D
Explanation
Simvastatin is a type of drug called a statin, which lowers cholesterol and triglycerides in the blood. Statins work by reducing the amount of cholesterol made by the liver, and the liver produces more cholesterol at night.Therefore, taking simvastatin in the evening can increase its effectiveness.
Choice A is wrong because changing position slowly when rising from a chair is not related to simvastatin use.
This advice is usually given to people who have low blood pressure or take medications that lower blood pressure, such as diuretics or beta blockers.
Choice B is wrong because maintaining a steady intake of green leafy vegetables is not specific to simvastatin use.
This advice is usually given to people who take anticoagulants, such as warfarin, because green leafy vegetables contain vitamin K, which can affect the blood clotting process.
Choice C is wrong because consuming no more than 1 L/day of fluid is not related to simvastatin use.
This advice is usually given to people who have fluid retention or heart failure, because excess fluid can put strain on the heart and lungs.
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