HESI LPN
HESI CAT Exam Test Bank
1. A client with myasthenia gravis (MG) is receiving immunosuppressive therapy. Review of recent laboratory test results shows that the client’s serum magnesium level has decreased below the normal range. In addition to contacting the healthcare provider, what nursing action is most important?
- A. Check the visual difficulties
- B. Note the most recent hemoglobin level
- C. Assess for hand and joint pain
- D. Observe rhythm on telemetry monitor
Correct answer: D
Rationale: The correct answer is to observe the rhythm on the telemetry monitor. Decreased magnesium levels can lead to cardiac issues, such as arrhythmias. Monitoring the heart rhythm is crucial in this situation. Checking visual difficulties (choice A) is not directly related to the potential cardiac effects of low magnesium levels. Noting the hemoglobin level (choice B) and assessing for hand and joint pain (choice C) are not the priority when dealing with low magnesium levels and possible cardiac complications.
2. After removing an IV that became infiltrated in the client’s left forearm, which site should the nurse select as a possible site to insert another IV catheter?
- A. Right hand
- B. Right forearm
- C. Left hand
- D. Right subclavian
Correct answer: A
Rationale: The correct answer is A: Right hand. When an IV becomes infiltrated in the client's left forearm, it is essential to avoid the same side due to the risk of complications. Therefore, the right hand is a suitable alternative site for IV insertion. Choices B, C, and D are incorrect. Choosing the right forearm (B) would still be on the same side, which increases the risk of complications. The left hand (C) is not a preferred option immediately after an infiltration in the left forearm. The right subclavian (D) is an invasive site typically reserved for central line placement and not a first-line choice for IV insertion.
3. An adult male is admitted to the psychiatric unit from the emergency department because he is in the manic disorder. He has lost 10 pounds in the last two weeks and has not bathed in a week because he has been “trying to start a new business” and is “too busy to eat.” He is alert and oriented to time, place and person, but not situation. Which nursing diagnosis has the greatest priority?
- A. Self-care deficit
- B. Disturbed sleep pattern
- C. Disturbed thought processes
- D. Imbalanced nutrition
Correct answer: D
Rationale: Imbalanced nutrition is the priority in this case as the patient has lost a significant amount of weight and is neglecting self-care, such as bathing and eating properly. The weight loss indicates a serious issue that needs immediate attention to prevent further health complications. While self-care deficit, disturbed sleep pattern, and disturbed thought processes are also concerns for this patient, addressing the imbalanced nutrition takes precedence due to the potential impact on the patient's physical health. Neglecting proper nutrition can lead to serious complications, so it is crucial to address this issue first.
4. A client is receiving lidocaine IV at 3 mg/minute. The pharmacy dispenses a 500 ml IV solution of normal saline (NS) with 2 grams of lidocaine. The nurse should regulate the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: D
Rationale: The infusion rate is calculated based on the concentration of lidocaine and the prescribed rate of infusion. First, convert lidocaine's weight to milligrams (2 grams = 2000 mg). Then, use the formula: (Total volume in ml * dose in mg) / 60 minutes. For this case, (500 ml * 2000 mg) / 60 minutes = 45 ml/hour. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not reflect the accurate calculation based on the provided concentration and infusion rate.
5. Assessment findings of a 3-hour-old newborn include: axillary temperature of 97.7°F, heart rate of 140 beats/minute with a soft murmur, and irregular respiratory rate at 42 breaths/min. Based on these findings, what action should the nurse implement?
- A. Place a pulse oximeter on the heel
- B. Swaddle the infant in a warm blanket
- C. Record the findings on the flow sheet
- D. Check the vital signs in 15 minutes
Correct answer: C
Rationale: The correct action for the nurse to take in this scenario is to record the findings on the flow sheet. The newborn's axillary temperature, heart rate, and respiratory rate are within normal limits for a 3-hour-old newborn. Therefore, there is no immediate need for intervention or further assessment. Swaddling the infant in a warm blanket, placing a pulse oximeter on the heel, or checking the vital signs in 15 minutes are not necessary actions based on the normal assessment findings presented. These actions could potentially disrupt the newborn or lead to unnecessary interventions when the baby is stable.
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