HESI LPN
HESI CAT Exam
1. The healthcare provider prescribes a fluid challenge of 0.9% sodium chloride 1,000 ml to be infused over 4 hours. The IV administration set delivers 10gtt/ml. How many gtt/minute should the nurse regulate the infusion? (Enter a numeric value only. If rounding is required, round to the nearest whole number.)
- A. 42
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the rate: (1000 ml / 4 hours) = 250 ml/hour; (250 ml/hour) / (60 minutes/hour) = 4.17 ml/minute; (4.17 ml/minute) * (10 gtt/ml) = 41.7 gtt/minute, rounded to 42 gtt/minute. Therefore, the nurse should regulate the infusion at 42 gtt/minute to deliver the prescribed fluid challenge accurately. The other choices are incorrect as they do not reflect the correct calculation based on the given information.
2. For a client with pneumonia, the prescription states, “Oxygen at liters/min per nasal cannula PRN difficult breathing.” Which nursing intervention is effective in preventing oxygen toxicity?
- A. Avoiding the administration of oxygen at high levels for extended periods.
- B. Administering a sedative at bedtime to slow the client’s respiratory rate.
- C. Removing the nasal cannula during the night to prevent oxygen buildup.
- D. Running oxygen through a hydration source prior to administration.
Correct answer: A
Rationale: Choice A is the correct answer because prolonged exposure to high levels of oxygen can lead to oxygen toxicity. Administering oxygen at high levels for extended periods can overwhelm the body's natural defenses against high oxygen levels, causing toxicity. Choices B, C, and D are incorrect. Choice B is unrelated to preventing oxygen toxicity. Choice C is unsafe as removing the nasal cannula can deprive the client of necessary oxygen. Choice D, running oxygen through a hydration source, is not a standard practice for preventing oxygen toxicity.
3. The school nurse is screening students for spinal abnormalities and instructs each student to stand up and then touch their toes. Which finding indicates that a student should be referred for scoliosis evaluation?
- A. Inability to touch their toes
- B. Asymmetry of the shoulders when standing upright
- C. Audible crepitus when bending
- D. An exaggerated upper thoracic convex curvature
Correct answer: B
Rationale: Asymmetry of the shoulders when standing upright is a common indicator of scoliosis. This finding suggests a possible spinal abnormality and should prompt further evaluation. Choices A, C, and D are not specific indicators of scoliosis. Inability to touch their toes may indicate flexibility issues or tightness in the hamstrings. Audible crepitus when bending may suggest joint degeneration or inflammation. An exaggerated upper thoracic convex curvature could indicate poor posture or other spinal abnormalities but is not directly indicative of scoliosis.
4. An angry client screams at the emergency department triage nurse, “I’ve been waiting here for two hours! You and the staff are incompetent”. What is the best response for the nurse to make?
- A. The emergency department is very busy at this time.
- B. I’ll let you see the doctor next because you’ve waited so long.
- C. I’m doing the best I can for the sickest clients first.
- D. I understand you are frustrated with the wait time.
Correct answer: D
Rationale: Correct Answer: The best response for the nurse is to choose option D, 'I understand you are frustrated with the wait time.' This response demonstrates empathy and validates the client's feelings, helping to defuse the situation. Choice A is not the best response as it does not directly address the client's emotions or concerns. Choice B is inappropriate as it gives preferential treatment based on the client's behavior. Choice C, while true, does not acknowledge the client's frustration or offer empathy.
5. A client is admitted for an exacerbation of heart failure (HF) and is being treated with diuretics for fluid volume excess. In planning nursing care, which interventions should the nurse include? (Select all that apply)
- A. Encourage oral fluid intake of 3,000 ml/day
- B. Observe for evidence of hypokalemia
- C. Teach the client how to restrict dietary sodium
- D. Monitor PTT, PT, and INR lab values
Correct answer: B
Rationale: The correct interventions to include when a client with heart failure is being treated with diuretics for fluid volume excess are to observe for evidence of hypokalemia. Diuretics can lead to potassium loss, resulting in hypokalemia. Monitoring for this electrolyte imbalance is crucial. Encouraging oral fluid intake of 3,000 ml/day may exacerbate fluid volume excess in a client with heart failure. Teaching the client how to restrict dietary sodium is important in managing heart failure, but it is not directly related to the use of diuretics for fluid volume excess. Monitoring PTT, PT, and INR lab values is not typically associated with diuretic therapy for heart failure but rather with anticoagulant therapy.
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