HESI LPN
HESI Practice Test Pharmacology
1. Phenazopyridine is commonly prescribed for clients with urinary tract infections (UTI). Which statement by the practical nurse describes the purpose for the administration of phenazopyridine?
- A. To alter the pH level of the urine
- B. To reduce the frequency of bladder spasms
- C. To alleviate the painful symptoms caused by the UTI
- D. To prevent bacterial replication and resistance development
Correct answer: C
Rationale: The correct answer is C. Phenazopyridine, a urinary analgesic, is utilized to alleviate the pain associated with urinary tract infections (UTIs) like burning, pain, urgency, and frequent voiding. The administration of phenazopyridine can cause the urine to turn a bright red-orange color. It is recommended to take this medication with food to reduce gastric irritation. Phenazopyridine should only be used for a maximum of 2 days when taken alongside an antibacterial agent, which is typically prescribed for about 2 weeks to treat the underlying infection.
2. A client with diabetes mellitus type 2 is prescribed glipizide. What instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid alcohol while taking this medication.
- C. Take this medication on an empty stomach.
- D. Report any signs of hypoglycemia to the healthcare provider.
Correct answer: A
Rationale: The correct instruction for a client prescribed glipizide, a sulfonylurea used to lower blood sugar levels, is to take the medication with meals. Taking it with meals helps to minimize the risk of hypoglycemia by ensuring a more balanced effect on blood glucose levels throughout the day. It is important for the client to follow this instruction to maintain stable blood sugar levels and reduce the likelihood of experiencing low blood sugar (hypoglycemia) episodes. Choice B is incorrect because there are no specific contraindications between glipizide and alcohol. Choice C is incorrect as glipizide should not be taken on an empty stomach. Choice D is incorrect as while it is important to report signs of hypoglycemia, the primary focus should be on preventing hypoglycemia by taking the medication with meals.
3. Which assessment finding requires nursing intervention prior to the administration of medication?
- A. Apical pulse heard best at the pulmonic site
- B. Irregular apical pulse rhythm
- C. Presence of a systolic heart murmur
- D. Apical pulse rate of 50 beats/minute
Correct answer: D
Rationale: An apical pulse rate of 50 beats/minute indicates bradycardia, a heart rate below the normal range, which requires immediate nursing intervention before administering medication to address the potential impact of the bradycardia on the patient's overall condition.
4. Escitalopram is prescribed for a 16-year-old adolescent client who is clinically depressed. Five days later, the parent tells the practical nurse (PN) that the drug is not working because their child is not feeling any better. Which explanation should the PN provide?
- A. It takes 1 to 4 weeks for antidepressant medications to become effective.
- B. The dosage may need to be increased; I will contact your health care provider.
- C. Depression is difficult to treat with drugs alone. Therapy sessions would enhance their effectiveness.
- D. Based on your child's response to this drug, the health care provider is reviewing your medication regimen.
Correct answer: A
Rationale: Antidepressant medications typically require 1 to 4 weeks to reach their full therapeutic effect. It is crucial to educate the family that during the initial week of treatment, the child may experience heightened anxiety. Therefore, it is important to wait for the medication to take its full course before assessing its effectiveness.
5. The healthcare provider is assessing the effectiveness of the drug amiodarone. Which client statement best indicates that the drug has been effective?
- A. I have not had as many spells of angina.
- B. I have not had as much swelling in my ankles lately.
- C. My doctor told me my cholesterol levels were improving with each visit.
- D. I do not notice as many irregular heartbeats as before I started taking this medication.
Correct answer: D
Rationale: The correct answer is option D. The effectiveness of amiodarone is best assessed by a reduction in irregular heartbeats since it is primarily used to treat ventricular dysrhythmias. This drug's main purpose is to control irregular heart rhythms, so a decrease in irregular heartbeats indicates its effectiveness. Options A, B, and C are incorrect because amiodarone is not primarily used to address angina, ankle swelling, or cholesterol levels, so improvements in these areas do not directly reflect the drug's effectiveness.
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