HESI LPN
Pharmacology HESI 2023
1. A 6-month-old infant is prescribed digoxin for the treatment of congestive heart failure. Which observation by the practical nurse (PN) warrants immediate intervention for signs of digoxin toxicity?
- A. Apical heart rate of 60 beats/min
- B. Sweating across the forehead
- C. Poor sucking effort
- D. Respiratory rate of 30 breaths/min
Correct answer: A
Rationale: A heart rate of 60 beats/min for a 6-month-old infant warrants immediate intervention as it falls below the normal range. The normal heart rate for a 6-month-old is 80 to 150 beats/min when awake, and a rate of 70 beats/min while sleeping is considered within normal limits. Bradycardia (heart rate <60 beats/min) in infants can be a sign of digoxin toxicity, necessitating prompt evaluation and intervention to prevent adverse effects. Sweating across the forehead (Choice B) is a non-specific symptom and may not directly indicate digoxin toxicity. Poor sucking effort (Choice C) and a respiratory rate of 30 breaths/min (Choice D) are not typically associated with digoxin toxicity and do not require immediate intervention in the context of this question.
2. A client has sublingual nitroglycerine tablets prescribed to treat angina. The nurse realizes the client requires further education if the client makes which statements? (Select one that doesn't apply.)
- A. I will need to replace the nitroglycerine tablets every 3 to 5 months, not in a year.
- B. I should continue taking nitroglycerine tablets if I develop a headache.
- C. I understand nitroglycerine tablets do not cause addiction.
- D. If I feel dizzy when I take these, I should sit down or lie down until I feel better.
Correct answer: D
Rationale: The correct answer is D. Nitroglycerine sublingual tablets need to be replaced every 3 to 5 months, not every year, making statement A incorrect. While nitroglycerine can cause a headache, it is important to continue taking the prescribed nitroglycerine if the client has angina, making statement B accurate. Nitroglycerine tablets do not cause addiction, so statement C is correct. Dizziness and weakness are associated with the hypotensive effect of nitroglycerine; therefore, if the client feels dizzy when taking them, they should sit down or lie down until they feel better. Taking nitroglycerine tablets before an activity known to cause angina can help prevent angina attacks.
3. A 67-year-old client is discharged from the hospital with a prescription for digoxin 0.25 mg daily. Which instruction by the practical nurse (PN) is correct?
- A. Take the medication in the morning before getting out of bed.
- B. Do not take the medication if the heartbeat is irregular or slow.
- C. Expect some vision changes due to the medication.
- D. Increase intake of foods rich in potassium.
Correct answer: B
Rationale: The correct instruction for a client taking digoxin is not to take the medication if the heartbeat is irregular or slow. Digoxin can affect the heart rhythm, so it is crucial to monitor the pulse rate. In case of irregular or slow heartbeats, the medication should be withheld, and the healthcare provider should be consulted. This step is necessary to prevent potential complications associated with digoxin therapy. Choices A, C, and D are incorrect. Taking digoxin in the morning before getting out of bed is not a specific requirement. Vision changes are not a common side effect of digoxin. While digoxin can affect potassium levels, it is not advised to increase potassium intake without healthcare provider guidance.
4. A client with hypertension is prescribed atenolol. The nurse should monitor the client for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hypotension
- D. Hyperglycemia
Correct answer: A
Rationale: When a client is prescribed atenolol, a beta-blocker medication used to treat hypertension, the nurse should monitor for bradycardia as a potential side effect. Atenolol works by slowing the heart rate, and one common adverse effect is bradycardia, which is a slower than normal heart rate. Monitoring the client's heart rate is essential to detect and manage this potential side effect promptly. Choices B, C, and D are incorrect because atenolol typically does not cause tachycardia, hypotension, or hyperglycemia as primary side effects. Instead, bradycardia is a common concern due to the drug's mechanism of action in reducing heart rate.
5. A healthy 68-year-old client asks the practical nurse (PN) whether they should take the pneumococcal vaccine. Which statement should the PN offer to the client that provides the most accurate information about this vaccine?
- A. The vaccine is given annually before the flu season to those older than 50 years.
- B. The immunization is recommended for children younger than 2 years old and all adults 65 years or older.
- C. The vaccine is for all ages and is given primarily to those traveling overseas to areas of infection.
- D. The vaccine will prevent the occurrence of pneumococcal pneumonia for up to 5 years.
Correct answer: B
Rationale: The correct answer is B because it is usually recommended that children younger than 2 years old and adults 65 years or older get vaccinated against pneumococcal disease. This is because these age groups are more susceptible to severe complications from the infection. While the vaccine may be recommended for certain individuals with specific medical conditions at any age, the primary target groups are as mentioned in option B. Option A is incorrect as the pneumococcal vaccine is not given annually like the flu vaccine. Option C is incorrect because the vaccine is not primarily for travelers but for certain age groups and individuals with medical conditions at risk. Option D is incorrect as the vaccine's duration of protection can vary, and it is not guaranteed to prevent pneumococcal pneumonia for up to 5 years.
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