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. The client is receiving vancomycin, and the nurse plans to draw blood for a peak and trough to determine... the best timing for these levels?
- A. Midway through administration of the IV dose and 30 minutes before the next
- B. Two hours after completion of the IV dose and 30 minutes before the next
- C. Two hours after completion of the IV dose and one hour before the next
- D. Immediately after completion of the IV dose and 30 minutes before
Correct answer: B
Rationale: To accurately determine peak and trough levels of vancomycin, blood should be drawn two hours after the completion of the IV dose and 30 minutes before the next dose. This timing allows for appropriate assessment of the drug levels in the body, ensuring accurate monitoring of therapeutic and toxic concentrations. Choice A is incorrect as drawing blood midway through administration does not provide an accurate peak level. Choice C is incorrect as drawing blood one hour before the next dose does not represent the trough level. Choice D is incorrect because drawing blood immediately after completion of the IV dose does not allow enough time for the drug to reach peak levels.
3. A client with an exacerbation of asthma is prescribed albuterol. The nurse should assess the client for which common side effect of this medication?
- A. Tremors
- B. Nausea and vomiting
- C. Insomnia
- D. Dry mouth
Correct answer: A
Rationale: The correct answer is A: Tremors. Albuterol, a beta-agonist medication commonly used to treat asthma exacerbations, can lead to tremors as a side effect. Tremors result from the stimulation of beta-2 receptors in muscles, particularly in the hands. Nausea and vomiting (Choice B) are generally not common side effects of albuterol. Insomnia (Choice C) is less likely to occur with albuterol, as it is a stimulant and can cause alertness rather than sleep disturbances. Dry mouth (Choice D) is not a typical side effect associated with albuterol use.
4. What is the primary nursing intervention that the practical nurse should perform before administering ampicillin to a client diagnosed with a urinary tract infection?
- A. Obtain a clean-catch urine specimen.
- B. Assess the urine pH for acidity.
- C. Insert an indwelling catheter.
- D. Assess for complaints of dysuria.
Correct answer: A
Rationale: The correct answer is to obtain a clean-catch urine specimen. Before administering ampicillin to a client with a urinary tract infection, it is crucial to collect a urine specimen to determine the causative organism and evaluate the effectiveness of pharmacological therapy. Assessing the urine pH for acidity (choice B) is not the primary intervention needed before administering ampicillin. Inserting an indwelling catheter (choice C) is invasive and not necessary unless indicated for specific reasons. Assessing for complaints of dysuria (choice D) is important but does not take precedence over obtaining a urine specimen for proper diagnosis and treatment.
5. What side effect is a male client likely to experience while receiving furosemide 40mg by mouth?
- A. Difficulty starting urination
- B. Nosebleeds
- C. Muscle cramps
- D. Visual disturbances
Correct answer: C
Rationale: Muscle cramps are a common side effect of furosemide due to its impact on electrolyte levels, especially potassium. Furosemide is a loop diuretic that can lead to potassium depletion, resulting in muscle cramps as one of the manifestations of electrolyte imbalances. Therefore, choices A, B, and D are incorrect. Difficulty starting urination is not a common side effect of furosemide; nosebleeds and visual disturbances are not typically associated with this medication.
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