a client who takes metformin for diabetes mellitus type 2 is taking nothing by mouth npo for surgery the practical nurse pn anticipates which pre op p
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Pharmacology HESI 55 Questions 2023

1. A client who takes metformin for diabetes mellitus type 2 is nothing by mouth (NPO) for surgery. What pre-op prescription should the practical nurse (PN) anticipate for this client's glucose management?

Correct answer: D

Rationale: When a client taking metformin for diabetes mellitus type 2 is NPO for surgery, it is crucial to manage their glucose levels effectively. The best approach in this situation is to prescribe regular insulin subcutaneously according to a sliding scale based on the client's blood glucose levels. This method allows for precise adjustment of insulin doses to maintain blood glucose within the target range while the client is unable to take oral medications. Choices A and B are incorrect because metformin is typically held when a client is NPO, and oral antidiabetic agents may not provide sufficient glucose control. Choice C is incorrect as Novolin-N insulin given twice daily may not offer the flexibility needed for glucose management in a surgical setting where the client's intake is restricted.

2. In a capillary glucose measurement, a client is to receive 10 units of regular insulin and isophane insulin. How should the nurse prepare?

Correct answer: B

Rationale: In insulin administration, regular insulin is typically administered before isophane insulin to manage blood glucose effectively. If regular insulin is not available, it is best to withhold the dose until it can be administered as prescribed. Choice A is incorrect as it suggests withdrawing from a specific vial without specifying regular insulin. Choice C is incorrect as obtaining a new vial of regular insulin may not be necessary if it becomes available shortly. Choice D is incorrect as administering 10 units from a mixture of regular and isophane insulin is not the correct approach.

3. A client arrives at the emergency department experiencing diabetic ketoacidosis (DKA). The healthcare provider prescribes an insulin intravenous drip. Which type of insulin should the nurse locate for the registered nurse to mix into the intravenous fluids?

Correct answer: C

Rationale: The correct insulin type for the nurse to mix into the intravenous fluids is regular insulin. In the scenario of diabetic ketoacidosis (DKA), rapid reduction of blood glucose levels is crucial. Regular insulin has a fast onset of action, making it suitable for intravenous administration to address the high blood sugar levels seen in DKA. Isophane, Glargine, and Detemir are not appropriate choices for intravenous administration in this emergency situation as they are intermediate-acting or long-acting insulins which do not provide the rapid response needed in DKA.

4. When a client with hepatic encephalopathy is receiving lactulose, which parameter is essential to monitor for a response to the drug?

Correct answer: D

Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition. Options A, B, and C are incorrect because serum hepatic enzymes, fingerstick glucose, and stool color/character are not directly related to monitoring the response to lactulose therapy in hepatic encephalopathy.

5. A client with diabetes mellitus type 2 is prescribed liraglutide. The nurse should include which instruction in the client's teaching plan?

Correct answer: D

Rationale: The correct answer is to administer liraglutide once a day. Liraglutide is typically prescribed to be taken once daily, as directed by the healthcare provider. This dosing schedule helps maintain consistent levels of the medication in the body to effectively manage blood sugar levels in clients with diabetes mellitus type 2. Option A, administering once a week, is incorrect as it would not provide consistent control of blood sugar levels. Option B, administering once a month, is also incorrect as it is not the recommended dosing frequency for liraglutide. Option C, administering twice a day, is inaccurate as liraglutide is not typically dosed in this manner. It is important for the nurse to emphasize the importance of adherence to the prescribed dosing regimen to achieve optimal therapeutic outcomes.

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