HESI LPN
HESI Practice Test Pharmacology
1. A client with diabetes mellitus is prescribed insulin glargine. What information should the practical nurse (PN) provide to the client about this medication?
- A. Administer the insulin at mealtimes.
- B. Do not mix this insulin with other insulins.
- C. Shake the vial well before use.
- D. Store the insulin in the freezer.
Correct answer: B
Rationale: Insulin glargine is a long-acting insulin that should not be mixed with other insulins in the same syringe. Mixing it with other insulins can alter its pharmacokinetics and effectiveness. Insulin glargine is usually administered at the same time each day, often at bedtime, to provide a consistent basal level of insulin over 24 hours.
2. The nurse is caring for a patient with short-term persistent diarrhea. Which class of medication would the nurse anticipate giving?
- A. Lubricants
- B. Probiotics
- C. Adsorbents
- D. Anticholinergics
Correct answer: B
Rationale: Probiotics are the correct choice in this scenario as they help restore normal gut flora, which can be effective in treating diarrhea by promoting a healthy balance of bacteria in the intestines. Lubricants are used to ease bowel movements and are not indicated for treating diarrhea. Adsorbents work by binding to toxins in the gut, which is not the primary mechanism needed for treating diarrhea. Anticholinergics are more commonly used for conditions like overactive bladder and not for short-term persistent diarrhea.
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 a diagnosis of generalized anxiety disorder is prescribed buspirone. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct potential side effect of buspirone is drowsiness. It is important for clients to be informed about this side effect, as it can affect their ability to perform tasks that require full alertness, such as driving. Clients should be advised to avoid activities that require mental alertness until they know how the medication affects them. Dry mouth is a common side effect of some other medications used for anxiety, such as benzodiazepines. Nausea and headache are not typically associated with buspirone use.
5. A client with a diagnosis of bipolar disorder is prescribed topiramate. The nurse should monitor for which potential adverse effect?
- A. Cognitive impairment
- B. Weight gain
- C. Liver toxicity
- D. Weight loss
Correct answer: A
Rationale: Correct. Topiramate is associated with cognitive impairment as an adverse effect. It is important for the nurse to monitor the client's cognitive function while on this medication to assess for any signs of cognitive decline or impairment. Choice B, weight gain, is incorrect as topiramate is actually associated with weight loss rather than weight gain. Choice C, liver toxicity, is also incorrect as topiramate is not known to cause liver toxicity. Choice D, weight loss, is not the correct answer as topiramate is not associated with weight gain.
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