HESI RN
RN HESI Exit Exam
1. A woman who takes pyridostigmine for myasthenia gravis (MG) arrives at the emergency department complaining of extreme muscle weakness. Her adult daughter tells the nurse that since yesterday her mother has been unable to smile. Which assessment finding warrants immediate intervention by the nurse?
- A. Uncontrollable drooling.
- B. Inability to raise voice.
- C. Tingling of extremities.
- D. Eyelid drooping.
Correct answer: A
Rationale: Uncontrollable drooling can be a sign of a myasthenic crisis, which requires immediate medical intervention to prevent respiratory failure. Drooling indicates difficulty in swallowing, which can lead to aspiration and respiratory compromise. Inability to raise voice (choice B) and tingling of extremities (choice C) are not typically associated with myasthenic crisis. Although eyelid drooping (choice D) is a common symptom of myasthenia gravis, it is not as urgent as uncontrollable drooling in indicating a potential crisis.
2. A client with heart failure is receiving digoxin (Lanoxin) and furosemide (Lasix). Which assessment finding requires immediate intervention?
- A. Heart rate of 60 beats per minute
- B. Apical pulse of 58 beats per minute
- C. Presence of a new murmur
- D. Blood pressure of 100/60 mmHg
Correct answer: C
Rationale: The correct answer is C. The presence of a new murmur in a client with heart failure receiving digoxin and furosemide is concerning as it may indicate valvular problems or other complications that require immediate intervention. A heart rate of 60 beats per minute and an apical pulse of 58 beats per minute are within normal limits for a client with heart failure on these medications. A blood pressure of 100/60 mmHg, while slightly low, may be expected due to the diuretic effect of furosemide and may not require immediate intervention unless the client is symptomatic.
3. The healthcare provider prescribes atenolol 50 mg daily for a client with angina pectoris. Which finding should the nurse report to the healthcare provider before administering this medication?
- A. Irregular pulse.
- B. Tachycardia.
- C. Chest pain.
- D. Urinary frequency.
Correct answer: A
Rationale: The correct answer is A: Irregular pulse. An irregular pulse may indicate an arrhythmia, which could be exacerbated by atenolol, a beta-blocker used to treat angina pectoris. Atenolol works by slowing the heart rate, so if the patient already has an irregular pulse, it could worsen with the medication. Tachycardia (choice B) would actually be an expected finding in a patient with angina pectoris, and atenolol is used to help reduce the heart rate in such cases. Chest pain (choice C) is a symptom that atenolol is meant to alleviate, so it would not be a reason to withhold the medication. Urinary frequency (choice D) is not directly related to the administration of atenolol for angina pectoris and would not require immediate reporting to the healthcare provider.
4. A female client who is admitted to the mental health unit for opiate dependency is receiving clonidine 0.1 mg PO for withdrawal symptoms. The client begins to complain of feeling nervous and tells the nurse that her bones are itching. Which finding should the nurse identify as a contraindication for administering the medication?
- A. Blood pressure 90/76 mm Hg.
- B. Heart rate of 85 bpm.
- C. Respiratory rate of 20 breaths/minute.
- D. Temperature of 99°F (37.2°C).
Correct answer: A
Rationale: Clonidine can lower blood pressure, so a BP of 90/76 mm Hg may indicate that it is unsafe to administer another dose. In this situation, the low blood pressure reading indicates that the client is already experiencing hypotension, which is a common side effect of clonidine. Administering more clonidine could further lower the blood pressure, leading to potential complications. The heart rate, respiratory rate, and temperature are within normal limits and do not serve as contraindications for administering clonidine in this scenario.
5. A client with a history of chronic kidney disease is scheduled for a CT scan with contrast. Which laboratory value should the nurse review before the procedure?
- A. Serum potassium
- B. Blood urea nitrogen (BUN)
- C. Serum creatinine
- D. Serum glucose
Correct answer: C
Rationale: Before a CT scan with contrast, the nurse should review the serum creatinine level. This is crucial in assessing kidney function because contrast agents can potentially worsen renal function, leading to contrast-induced nephropathy. Monitoring serum creatinine helps in identifying patients at risk and taking necessary precautions. Serum potassium (Choice A) is important in conditions like hyperkalemia but is not the priority before a contrast CT scan. Blood urea nitrogen (BUN) (Choice B) is another renal function test but is not as specific as serum creatinine for assessing kidney function. Serum glucose (Choice D) is important in monitoring blood sugar levels, especially in diabetic patients, but it is not directly related to the risk of contrast-induced nephropathy in this scenario.
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