HESI LPN
Community Health HESI Practice Exam
1. A 4-month-old child taking digoxin (Lanoxin) has a blood pressure of 92/78; resting pulse of 78; respirations 28, and a potassium level of 4.8 mEq/L. The client is irritable and has vomited twice since the morning dose of digoxin. Which finding is most indicative of digoxin toxicity?
- A. Bradycardia
- B. Lethargy
- C. Irritability
- D. Vomiting
Correct answer: A
Rationale: Bradycardia (abnormally slow heart rate) is a key sign of digoxin toxicity. In this scenario, the child's symptoms of irritability, vomiting, along with the resting pulse of 78 despite being on digoxin, suggest an impending bradycardia due to digoxin toxicity. Lethargy can also be a sign, but in this case, the child is irritable rather than lethargic. Vomiting, though a symptom, is not as specific to digoxin toxicity as bradycardia. Irritability, while present, is not the most indicative finding of digoxin toxicity compared to bradycardia.
2. During the beginning shift assessment of a client with asthma who is receiving oxygen via nasal cannula at 2 liters per minute, the nurse would be most concerned about which unreported finding?
- A. Pulse oximetry reading of 89%
- B. Crackles at the base of the lungs on auscultation
- C. Rapid shallow respirations with intermittent wheezes
- D. Excessive thirst with a dry cracked tongue
Correct answer: C
Rationale: Rapid, shallow respirations with intermittent wheezes are concerning as they indicate a potential worsening of the client's asthma. This finding suggests airway narrowing, which can lead to respiratory failure. Immediate intervention is required to address this respiratory distress. A pulse oximetry reading of 89% is low and indicates hypoxemia, but the respiratory pattern described in option C takes priority as it directly reflects the client's respiratory status. Crackles at the base of the lungs suggest fluid accumulation, which is important but not as immediately critical as the respiratory distress in asthma. Excessive thirst and a dry cracked tongue may indicate dehydration, which is relevant but not as urgent as the respiratory compromise presented in option C.
3. A child and his family were exposed to Mycobacterium tuberculosis about 2 months ago. To confirm the presence or absence of an infection, it is most important for all family members to have a
- A. Chest x-ray
- B. Blood culture
- C. Sputum culture
- D. PPD intradermal test
Correct answer: D
Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.
4. A client has just returned to the medical-surgical unit following a segmental lung resection. After assessing the client, the first nursing action would be to:
- A. Administer pain medication
- B. Suction excessive tracheobronchial secretions
- C. Assist the client to turn, deep breathe, and cough
- D. Monitor oxygen saturation
Correct answer: B
Rationale: After a segmental lung resection, the priority nursing action should be to suction excessive tracheobronchial secretions. This helps in preventing airway obstruction from secretions, ensuring the patency of the airway and optimizing respiratory function. Administering pain medication can be important but addressing airway clearance takes precedence. Assisting the client to turn, deep breathe, and cough is essential for respiratory hygiene but not the first action immediately post-op. Monitoring oxygen saturation is crucial, but ensuring airway clearance is the priority to prevent complications.
5. During a large community disaster, a man states that the blast threw him out of a second-story window. Which action should the nurse implement first?
- A. Logroll the client to his side and assess for back injuries
- B. Perform a complete neurological assessment
- C. Open the client's airway immediately
- D. Place the nurse's hands around the client's neck to stabilize
Correct answer: D
Rationale: In this situation, the nurse should first stabilize the client's neck to prevent potential spinal cord injuries. Logrolling the client or performing other assessments should only be done after ensuring spinal stabilization. Opening the airway immediately is important in cases of airway obstruction, but stabilizing the neck takes priority in this scenario. Performing a complete neurological assessment may delay immediate stabilization, which is crucial in suspected spinal injuries.
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