HESI LPN
HESI Practice Test Pharmacology
1. 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.
2. 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.
3. A client is prescribed an antibiotic for a urinary tract infection (UTI). What instruction should the practical nurse provide to the client to ensure the effectiveness of the medication?
- A. Take the medication with food.
- B. Increase fluid intake.
- C. Complete the full course of the medication.
- D. Avoid dairy products.
Correct answer: C
Rationale: The practical nurse should instruct the client to complete the full course of the antibiotic to ensure the infection is fully treated and to prevent the development of antibiotic resistance. Completing the full course of antibiotics helps to eradicate the infection completely and reduces the risk of bacteria developing resistance to the medication. Choices A, B, and D are not directly related to ensuring the effectiveness of the antibiotic. While taking medication with food or increasing fluid intake can be beneficial in general, the crucial instruction in this case is to complete the full course of the antibiotic.
4. A client with a history of atrial fibrillation is prescribed warfarin. The nurse should monitor for which sign of potential bleeding?
- A. Elevated blood pressure
- B. Bruising
- C. Shortness of breath
- D. Nausea and vomiting
Correct answer: B
Rationale: Warfarin is an anticoagulant that increases the risk of bleeding. Bruising is a common sign of potential bleeding in clients taking warfarin. Monitoring for bruising is essential as it can indicate a risk of bleeding that needs further assessment and management. Elevated blood pressure, shortness of breath, nausea, and vomiting are not direct signs of potential bleeding associated with warfarin therapy.
5. How do you determine if the medication is effective for a client with anemia secondary to chronic kidney disease (CKD)?
- A. Food diary shows increased consumption of iron-rich foods
- B. Reports of increased energy levels and decreased fatigue
- C. Hemoglobin level increased to 12 grams/dL
- D. Takes concurrent iron therapy without adverse effects
Correct answer: C
Rationale: The correct answer is C. To assess the effectiveness of medication for anemia in a client with CKD, monitoring hemoglobin levels is crucial. Hemoglobin levels directly indicate the response to treatment and improvement in the condition. An increase in hemoglobin level to 12 grams/dL suggests that the medication is effectively addressing the anemia associated with CKD. Choices A, B, and D are incorrect because increased consumption of iron-rich foods, reports of increased energy levels and decreased fatigue, and tolerance to concurrent iron therapy without adverse effects are not direct indicators of the medication's effectiveness in treating anemia secondary to CKD.
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