HESI LPN
HESI Practice Test Pharmacology
1. A client who received a prescription for cyclosporine ophthalmic emulsion for dry eyes asks the practical nurse (PN) if it is safe to continue using artificial tears. What information should the PN provide?
- A. Avoid using artificial tears because they decrease the efficacy of cyclosporine.
- B. Discontinue the use of both products if transient blurring occurs after administration.
- C. Allow a 15-minute interval between the administration of cyclosporine and artificial tears.
- D. Discontinue the use of cyclosporine and artificial tears when tear production reaches a normal level.
Correct answer: C
Rationale: The correct answer is to allow a 15-minute interval between the administration of cyclosporine and artificial tears. Cyclosporine, an ophthalmic emulsion that increases tear production, can be used in conjunction with artificial tears as long as the products are administered 15 minutes apart. This interval helps to prevent any potential interactions between the two products and ensures optimal effectiveness of cyclosporine for treating dry eyes.
2. A client has a prescription for heparin 1,000 units IV STAT. Several pre-filled syringes of low molecular weight heparin are available in the client's medication drawer. Which action should the nurse implement?
- A. Dilute the available heparin in 250ml of normal saline solution prior to IV administration
- B. Advise the pharmacy on the need to deliver a vial of heparin to the nursing unit immediately
- C. Calculate and administer the equivalent dose of the available low molecular weight heparin
- D. Request a prescription to change the route of administration and use the available heparin
Correct answer: B
Rationale: In this scenario, the nurse should contact the pharmacy to obtain the correct heparin formulation as the prescription calls for heparin 1,000 units IV STAT. Low molecular weight heparin is not the same as unfractionated heparin, and therefore, the nurse should not administer the available low molecular weight heparin without first obtaining the correct medication. Diluting the available heparin, calculating an equivalent dose, or changing the route of administration would not address the discrepancy between the prescribed heparin and the available low molecular weight heparin.
3. A client with diabetes mellitus type 2 is prescribed sitagliptin. The nurse should include which instruction in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid alcohol while taking this medication.
- C. Take this medication on an empty stomach.
- D. Report any signs of pancreatitis to the healthcare provider.
Correct answer: D
Rationale: The correct instruction to include in the teaching plan for a client prescribed sitagliptin is to report any signs of pancreatitis to the healthcare provider. Sitagliptin is generally taken with meals to reduce gastrointestinal side effects. Therefore, choice A, 'Take this medication with meals,' is incorrect. Sitagliptin does not have specific interactions with alcohol, so there is no need to advise the client to avoid alcohol, making choice B incorrect. Taking sitagliptin on an empty stomach is not recommended, so choice C is also incorrect. Pancreatitis is a rare but serious side effect of sitagliptin, so it is crucial for the client to report any signs or symptoms to their healthcare provider promptly.
4. A client with rheumatoid arthritis is prescribed methotrexate. What is the most important instruction the practical nurse (PN) should provide to the client?
- A. Take the medication on an empty stomach.
- B. Avoid taking folic acid supplements.
- C. Report any signs of infection immediately.
- D. Increase intake of vitamin C-rich foods.
Correct answer: C
Rationale: Correct Answer: The most important instruction for a client taking methotrexate is to report any signs of infection immediately. Methotrexate can suppress the immune system, making the client more susceptible to infections. Early detection and treatment of infections are crucial to prevent complications. Instructing the client to be vigilant for signs of infection empowers them to take prompt action, enhancing their overall safety and well-being.
5. When should a glucagon emergency kit be used for a client with Type 1 diabetes?
- A. During episodes of hypoglycemia
- B. At the onset of signs of diabetic ketoacidosis
- C. Before meals to prevent hyperglycemia
- D. When signs of severe hypoglycemia occur
Correct answer: D
Rationale: A glucagon emergency kit is used when signs of severe hypoglycemia occur in a client with Type 1 diabetes. Glucagon helps raise blood glucose levels in cases of severe hypoglycemia when the individual is unable to take oral glucose. It is crucial to administer glucagon promptly to prevent serious complications associated with low blood sugar levels. Choices A, B, and C are incorrect because a glucagon emergency kit is specifically indicated for severe hypoglycemia, not for general episodes of hypoglycemia, diabetic ketoacidosis, or prevention of hyperglycemia.
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