HESI Pharmacology Practice Exam

Correct Answer: C

Rationale: Alcohol lowers the seizure threshold and should be avoided by individuals taking anticonvulsants.

Correct Answer: A

Rationale: When mixing regular insulin with another insulin preparation, it is crucial to withdraw the regular insulin first to prevent contamination. NPH insulin should be drawn after the regular insulin to maintain the integrity of each insulin type. Therefore, if the client withdraws the NPH insulin first, it indicates the need for further teaching.

Correct Answer: B

Rationale: To monitor the effectiveness of infliximab (Remicade) treatment in a client with Crohn's disease, the nurse should observe the frequency and consistency of bowel movements. Infliximab is an immunomodulator that works to reduce inflammation in the colon, leading to improvements in bowel symptoms such as frequency and consistency. Monitoring these bowel patterns can provide valuable insight into the response to the medication and the overall management of Crohn's disease.

Correct Answer: B

Rationale: Nalidixic acid can intensify the effects of oral anticoagulants by displacing these agents from binding sites on plasma proteins. When an oral anticoagulant, like warfarin sodium (Coumadin), is combined with nalidixic acid, a decrease in the anticoagulant dosage may be necessary to avoid excessive anticoagulation and potential bleeding risks.

Correct Answer: A

Rationale: Protamine sulfate is the antidote for heparin, working to reverse its effects in case of excessive bleeding. It should be readily available when administering heparin to manage any potential bleeding complications effectively.