HESI LPN
Pharmacology HESI 2023
1. A client has been prescribed losartan. Which change in data indicates to the practical nurse (PN) that the desired effect of this medication has been achieved?
- A. Dependent edema reduced from +3 to +1.
- B. Serum HDL increased from 35 to 55 mg/dL.
- C. Pulse rate reduced from 150 to 90 beats/min.
- D. Blood pressure reduced from 160/90 to 130/80 mm Hg.
Correct answer: D
Rationale: The correct answer is D. Losartan is prescribed for the treatment of hypertension. The desired effect of losartan is to reduce blood pressure. Therefore, a reduction in blood pressure from 160/90 to 130/80 mm Hg indicates that the desired effect of the medication has been achieved. Choices A, B, and C are not specific effects of losartan and do not directly relate to the expected outcomes of this medication. Dependent edema, serum HDL levels, and pulse rate are not typically influenced by losartan, making choices A, B, and C incorrect.
2. A client with hypertension is prescribed amlodipine. The nurse should monitor for which potential adverse effect?
- A. Peripheral edema
- B. Bradycardia
- C. Hypertension
- D. Increased appetite
Correct answer: A
Rationale: Corrected Rationale: Amlodipine is known to cause peripheral edema as a potential adverse effect due to its vasodilatory properties. This can lead to fluid accumulation in the extremities. Monitoring for peripheral edema in patients taking amlodipine is crucial to identify and manage this side effect promptly. Choices B, C, and D are incorrect because amlodipine is not associated with causing bradycardia, hypertension (as the patient already has hypertension), or increased appetite as adverse effects.
3. 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.
4. A client with asthma is prescribed montelukast. The nurse should instruct the client that this medication is used for which purpose?
- A. Immediate relief of acute asthma attacks
- B. Long-term control of asthma symptoms
- C. Treatment of exercise-induced bronchospasm
- D. Immediate relief of allergic rhinitis symptoms
Correct answer: B
Rationale: Montelukast is a leukotriene receptor antagonist used for the long-term control of asthma symptoms by reducing inflammation in the airways. It is not typically used for immediate relief during acute asthma attacks, where short-acting bronchodilators are more appropriate. Montelukast does not specifically target exercise-induced bronchospasm or allergic rhinitis symptoms. Therefore, the correct answer is B. Choice A is incorrect because montelukast is not for immediate relief of acute asthma attacks. Choice C is incorrect as montelukast is not primarily used to treat exercise-induced bronchospasm. Choice D is incorrect because montelukast is not indicated for immediate relief of allergic rhinitis symptoms.
5. A client is prescribed clonidine 0.1 mg/24 hours via a transdermal patch. Which client outcome would indicate that the medication is effective?
- A. No complaints of recent episodes of angina
- B. Change in peripheral edema from +3 to +1
- C. No complaints of new onset of nausea or vomiting
- D. Blood pressure changes from 180/120 to 140/70 mm Hg
Correct answer: D
Rationale: Clonidine is an antihypertensive agent that works centrally to reduce blood pressure. A significant decrease in blood pressure, such as changing from 180/120 to 140/70 mm Hg, indicates that the medication is effectively managing hypertension. Monitoring blood pressure levels is crucial in assessing the response to clonidine therapy. Choices A, B, and C are incorrect as they do not directly relate to the therapeutic effect of clonidine in managing hypertension, which is the primary goal of the medication in this scenario.
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