HESI LPN
HESI CAT Exam
1. Which client requires careful nursing assessment for signs and symptoms of hypomagnesemia?
- A. A young adult client with intractable vomiting from food poisoning
- B. A client who developed hyperparathyroidism in late adolescence
- C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
- D. A female client who is overzealous with her intake of simple carbohydrates
Correct answer: A
Rationale: The correct answer is A. Vomiting can lead to significant loss of magnesium, causing hypomagnesemia. In this scenario, the young adult client with intractable vomiting from food poisoning is at higher risk of developing hypomagnesemia due to the loss of magnesium through vomiting. Choices B, C, and D are less likely to present with hypomagnesemia. Hyperparathyroidism (B) is associated with hypercalcemia, renal failure (C) can lead to hypermagnesemia, and overconsumption of simple carbohydrates (D) is not directly linked to magnesium imbalances.
2. The nurse is planning to assess a client's oxygen saturation to determine if additional oxygen is needed via nasal cannula. The client has bilateral below-the-knee amputations and weak, thread pedal pulses. What action should the nurse take?
- A. Document that an accurate oxygen saturation reading cannot be obtained
- B. Elevate the client's hands for five minutes prior to obtaining a reading from the finger
- C. Increase the oxygen based on the client's breathing patterns and lung sounds
- D. Place the oximeter clip on the earlobe to obtain the oxygen saturation reading
Correct answer: D
Rationale: Placing the oximeter clip on the earlobe is appropriate for clients with poor peripheral circulation, such as those with weak and thread pedal pulses due to bilateral below-the-knee amputations. This placement can provide a more accurate reading of oxygen saturation in such clients. Choice A is incorrect because alternative methods, such as earlobe placement, can be used to obtain accurate readings. Choice B is unnecessary and not related to obtaining an accurate oxygen saturation reading. Choice C is incorrect because increasing oxygen without assessing the oxygen saturation level first can be detrimental and is not based on evidence-based practice.
3. A premature infant weighing 1,200 grams at birth receives a prescription for beractant (Survanta) 120 mg endotracheal now and q6 hr for 24 hr. The recommended dose for beractant is 100 mg/kg birth weight per dose. Single-use vials of Survanta are labeled 100 mg/4 ml. What action should the nurse take?
- A. Give 4.8 ml q6 hr
- B. Notify the healthcare provider that the dose is too high
- C. Notify the healthcare provider that the dose is too low
- D. Give 1.2 ml q6 hr
Correct answer: A
Rationale: The correct answer is to give 4.8 ml q6 hr. To calculate the dose, you divide the prescribed dose of 120 mg by the concentration of Survanta, which is 100 mg per 4 ml. This results in 4.8 ml per dose, as 120 mg ÷ 100 mg/4 ml = 4.8 ml. Option B suggesting to notify the healthcare provider that the dose is too high is incorrect because the calculated dose of 4.8 ml is based on the recommended dose of 100 mg/kg birth weight. Option C suggesting to notify the healthcare provider that the dose is too low is incorrect as the calculated dose is based on the correct dosage calculation. Option D suggesting to give 1.2 ml q6 hr is incorrect because it doesn't align with the correct calculation.
4. When conducting diet teaching for a client who is on a postoperative full liquid diet, which foods should the nurse encourage the client to eat?
- A. Vanilla frozen yogurt
- B. Vegetable juice
- C. Clear beef broth
- D. Canned fruit cocktail
Correct answer: A
Rationale: The correct answer should be provided as choice E: Vanilla frozen yogurt. For a postoperative full liquid diet, the nurse should encourage the client to eat foods that are fully liquid and easy to digest. Vanilla frozen yogurt is a suitable choice as it provides calories and nutrients while being in a liquid form. Creamy peanut butter, vegetable juice, and canned fruit cocktail are not appropriate for a full liquid diet as they are not fully liquid and may not be easy to digest. Creamy peanut butter is solid, vegetable juice is not fully liquid, and canned fruit cocktail contains solid pieces.
5. What nursing intervention is most important to implement after a client has completed a myelogram?
- A. Lie-sit-stand blood pressure measurement
- B. Abdominal assessment for distention and bowel sounds
- C. Neurovascular assessment of lower extremities
- D. Assessment of skin temperature and turgor
Correct answer: C
Rationale: The correct answer is C: Neurovascular assessment of the lower extremities. After a myelogram, it is crucial to monitor the neurovascular status to detect any signs of complications such as impaired circulation or nerve damage. This assessment helps in identifying early signs of vascular compromise or neurological deficits. Choices A, B, and D are not the priority after a myelogram. Lie-sit-stand blood pressure measurement is not directly related to post-myelogram care. Abdominal assessment and skin assessment are important but not the priority immediately after this procedure.
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