The nurse informs a client they need to stop taking loratadine four days before their scheduled allergy testing. What is the indication for stopping loratadine?
Loratadine can interfere with the accuracy of the test.
Loratadine can cause increased sensitivity to allergens.
Loratadine can cause hypotension during the allergy test.
Loratadine can cause an allergic reaction during the test.
The Correct Answer is A
A. Loratadine can interfere with the accuracy of the test: Loratadine is a second-generation antihistamine that blocks H1 receptors. Continuing the medication can suppress allergic responses, leading to false-negative results during allergy testing, which is why it must be discontinued several days beforehand.
B. Loratadine can cause increased sensitivity to allergens: Loratadine does not increase sensitivity to allergens. Its mechanism involves reducing the body’s allergic response, not enhancing it, so this is not a reason to stop the medication before testing.
C. Loratadine can cause hypotension during the allergy test: Loratadine does not significantly affect blood pressure. Hypotension is not a known effect of loratadine during allergy testing, so this is not a valid reason for discontinuation.
D. Loratadine can cause an allergic reaction during the test: Loratadine itself is unlikely to trigger an allergic reaction. The purpose of stopping the drug is to prevent interference with test results, not to prevent a reaction caused by the medication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"B","dropdown-group-3":"C"}
Explanation
• Simvastatin: Simvastatin is a statin medication used to lower LDL cholesterol and total cholesterol in clients with hypercholesterolemia. It works by inhibiting HMG-CoA reductase, an enzyme involved in cholesterol synthesis in the liver. Statins reduce the risk of atherosclerotic cardiovascular disease and are part of long-term management of elevated lipid levels.
• In the evening: Cholesterol synthesis in the liver is highest at night. Administering simvastatin in the evening optimizes its effectiveness in lowering LDL and total cholesterol levels. Educating clients about timing improves medication efficacy and supports adherence to therapy.
• Dark urine: Dark urine may indicate rhabdomyolysis, a rare but serious adverse effect of statins, caused by muscle breakdown. Clients should report this immediately, as it can lead to acute kidney injury. Prompt recognition and discontinuation of the medication are essential to prevent severe complications.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"B"}
Explanation
• Sitting: The sitting position promotes optimal lung expansion and helps the client achieve maximum inhalation of the medication. Proper posture ensures that the airways are open and reduces the risk of aspiration or ineffective drug delivery. Sitting upright also enhances coordination between actuation and inhalation.
• Shake the inhaler: Shaking the metered dose inhaler mixes the medication and propellant evenly, ensuring a consistent and accurate dose is delivered. Failing to shake the inhaler can result in uneven dosing, reducing the effectiveness of therapy and potentially worsening the client’s respiratory symptoms.
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