ATI Pharmacology Test Bank

Correct Answer: A

Rationale: An aPTT of 90 seconds is above the therapeutic range for heparin, which typically falls between 60-80 seconds. This indicates that the current heparin dose is too high, and the infusion rate should be decreased to avoid excessive anticoagulation and the risk of bleeding. Monitoring aPTT is crucial in adjusting heparin therapy to maintain it within the therapeutic range.

Correct Answer: B

Rationale: An older adult client with prostatitis who is receiving antibiotics should be monitored for toxicity due to age-related reductions in medication metabolism and excretion. Older adults are more susceptible to antibiotic toxicity, making them a high-risk group for adverse effects.

Correct Answer: B

Rationale: Methotrexate is hepatotoxic, and avoiding alcohol is crucial to prevent liver damage. However, Option A (Take this medication with food to prevent nausea) could also be correct, as Methotrexate commonly causes nausea, and taking it with food can help alleviate this side effect. However, the most important instruction is to avoid alcohol due to the risk of liver toxicity.

Correct Answer: C

Rationale: Verifying the client's current cumulative lifetime dose of doxorubicin is necessary because excessive amounts of the medication can lead to cardiomyopathy, a serious and potentially life-threatening side effect. By monitoring the cumulative dose, healthcare providers can help prevent cardiotoxicity and ensure patient safety during treatment.

Correct Answer: C

Rationale: When using Nitroglycerin patches to treat angina, it is crucial to apply the patch to a different site each time. This practice helps prevent skin irritation and ensures proper absorption of the medication, optimizing its effectiveness in managing angina symptoms.