HESI LPN
HESI Practice Test Pharmacology
1. A patient is prescribed sucralfate (Carafate) and asks the nurse what the purpose of taking this medication is. Which is the nurse's best response?
- A. The medication helps reduce bacteria levels in the stomach
- B. The medication helps neutralize gastric acid in the stomach
- C. The medication is used to protect the gastrointestinal mucosa
- D. The medication can reduce the patient's constipation
Correct answer: C
Rationale: The correct answer is C. Sucralfate (Carafate) is used to protect the gastrointestinal mucosa by forming a protective barrier over ulcers. This barrier helps prevent stomach acid from further damaging the ulcers and promotes healing. It does not directly reduce bacteria levels, neutralize gastric acid, or have a direct effect on constipation.
2. What class of laxative would the nurse recommend to a patient asking about the best way to prevent constipation?
- A. Stimulant laxatives
- B. Bulk-forming laxatives
- C. Emollient laxatives
- D. Hyperosmotic laxatives
Correct answer: B
Rationale: The correct answer is B: Bulk-forming laxatives. These laxatives are recommended to prevent constipation because they work by absorbing liquid in the intestines, forming a bulky, soft stool that is easier to pass. They are safe and considered the most natural option. Stimulant laxatives (choice A) work by promoting bowel movements through intestinal contractions and are more suitable for treating occasional constipation rather than preventing it. Emollient laxatives (choice C) soften the stool by increasing the incorporation of water into the feces and are more suitable for patients who need to avoid straining during defecation. Hyperosmotic laxatives (choice D) work by drawing water into the intestine through osmosis and are typically used for more severe cases of constipation, not for prevention.
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?
- A. Isophane
- B. Glargine
- C. Regular
- D. Detemir
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. A client with a diagnosis of schizophrenia is prescribed quetiapine. The nurse should monitor the client for which potential side effect?
- A. Weight gain
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: Quetiapine is known to cause weight gain as a common side effect. Monitoring the client's weight is crucial to identify any significant changes that may occur due to the medication.
5. A client with pulmonary tuberculosis has been taking rifampin for 3 weeks. The client reports orange urine. What should be the nurse's next action?
- A. Notify the client's health care provider.
- B. Inform the client that this is not harmful.
- C. Assess the client for other signs of nephrotoxicity.
- D. Monitor the client's most recent creatinine level.
Correct answer: B
Rationale: The correct action for the nurse to take when a client reports orange urine after taking rifampin is to inform the client that this change is not harmful. Rifampin is known to cause orange discoloration of urine, which is a harmless side effect. There is no need to notify the health care provider as this is an expected outcome. Monitoring creatinine levels or assessing for nephrotoxicity is unnecessary in this situation, as rifampin does not typically cause kidney damage.
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