HESI LPN
HESI Practice Test Pharmacology
1. A client with hypertension is prescribed atenolol. The nurse should monitor for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Dry mouth
- D. Hypotension
Correct answer: A
Rationale: When a client is prescribed atenolol, a beta-blocker, the nurse should monitor for bradycardia, which is a potential side effect. Atenolol works by slowing the heart rate, so monitoring the client's heart rate is essential to detect and manage bradycardia promptly.
2. A client with a diagnosis of generalized anxiety disorder is prescribed venlafaxine. The nurse should instruct the client that this medication may have which potential side effect?
- A. Nausea
- B. Dry mouth
- C. Insomnia
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Nausea. Venlafaxine, a medication used for generalized anxiety disorder, can commonly cause nausea as a side effect. It is essential for clients to be aware of this potential side effect and advised to take the medication with food if nausea occurs. Choices B, C, and D are incorrect because dry mouth, insomnia, and headache are less commonly associated side effects of venlafaxine compared to nausea.
3. Which action should be taken to assess for analgesic tolerance in a client who is unable to communicate?
- A. Review the client's laboratory values for changes in peak and trough levels of the analgesic
- B. Prolong the interval between analgesic medication doses and monitor the client's vital signs
- C. Observe the client for the presence of pain behaviors before the next analgesic dose is due
- D. Ask family members to report behaviors suggesting that the client's pain has returned
Correct answer: C
Rationale: In clients who are unable to communicate, observing for pain behaviors is crucial in assessing analgesic tolerance. Changes in pain behaviors can indicate if the current analgesic regimen is effective or if tolerance has developed. Therefore, closely observing the client for pain behaviors before the next analgesic dose helps healthcare providers evaluate the client's response to pain management. Reviewing laboratory values may not directly reflect analgesic tolerance. Prolonging the interval between doses and monitoring vital signs may not provide direct information on analgesic tolerance. Relying solely on family members to report pain behaviors may not be as accurate or immediate as observing the client directly.
4. A patient with irritable bowel syndrome starts a new prescription for dicyclomine, an anticholinergic medication. The client reports the onset of sensitivity to light and a dry mouth. How should the nurse respond?
- A. Determine if the medication is being taken correctly
- B. Provide instructions on managing these side effects
- C. Schedule an appointment for evaluation by the healthcare provider
- D. Advise stopping the medication until the unpleasant side effects wear off
Correct answer: B
Rationale: The correct response is to provide instructions on managing these side effects. Sensitivity to light and dry mouth are common side effects of anticholinergic medications like dicyclomine. It is essential for the nurse to educate the patient on strategies to cope with these side effects, such as staying hydrated to address dry mouth and wearing sunglasses to reduce sensitivity to light. Option A is not the priority as the side effects are expected with this medication and do not necessarily indicate incorrect use. Option C is not immediately necessary as the side effects are common and can be managed without a healthcare provider evaluation. Option D is not recommended unless advised by the healthcare provider as abruptly stopping the medication can lead to worsening symptoms or withdrawal effects.
5. 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.
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