HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of hypertension is prescribed a beta-blocker. Which side effect should the LPN/LVN monitor for in this client?
- A. Increased appetite
- B. Dry mouth
- C. Bradycardia
- D. Insomnia
Correct answer: C
Rationale: The correct side effect that the LPN/LVN should monitor for in a client prescribed a beta-blocker is bradycardia. Beta-blockers work by slowing down the heart rate, which can lead to bradycardia as a common side effect. Monitoring the client's heart rate is crucial, as bradycardia can be a serious condition. Choices A, B, and D are incorrect because increased appetite, dry mouth, and insomnia are not typically associated with beta-blockers. Increased appetite is more commonly linked to certain medications like corticosteroids, dry mouth can be a side effect of anticholinergic medications, and insomnia may be a side effect of stimulant medications.
2. During an assessment, a nurse is evaluating the breath sounds of an adult client diagnosed with pneumonia. Which of the following actions should the nurse take?
- A. Follow a systematic pattern from side-to-side moving down the client’s chest.
- B. Ask the client to breathe in deeply through their nose.
- C. Instruct the client to sit upright with their head slightly tilted backward.
- D. Place the diaphragm of the stethoscope on the client’s chest.
Correct answer: A
Rationale: When assessing breath sounds in a client with pneumonia, the nurse should follow a systematic pattern from side-to-side moving down the client’s chest. This approach ensures a comprehensive evaluation of breath sounds across different lung fields. Asking the client to breathe in deeply through their nose (Choice B) is not necessary for assessing breath sounds. Instructing the client to sit upright with their head slightly tilted backward (Choice C) is not directly related to assessing breath sounds and may not be required. Placing the diaphragm of the stethoscope on the client’s chest (Choice D) is not the correct technique for auscultating breath sounds, as the diaphragm should be used for this purpose.
3. A client requires gastric decompression, and a nurse is inserting an NG tube. Which action should the nurse take to verify proper placement of the tube?
- A. Assess the client for a gag reflex
- B. Measure the pH of the gastric aspirate
- C. Place the end of the NG tube in water to observe for bubbling
- D. Auscultate 2.5 cm (1 in) above the umbilicus while injecting 15 mL of sterile water
Correct answer: B
Rationale: Measuring the pH of the gastric aspirate is the most reliable method to confirm proper placement of an NG tube. Gastric fluid has an acidic pH, typically ranging from 1 to 5. Assessing the client for a gag reflex (choice A) is important for airway protection but does not confirm tube placement. Placing the NG tube in water to observe for bubbling (choice C) is incorrect and not a reliable method for verifying placement. Auscultating 2.5 cm above the umbilicus while injecting sterile water (choice D) is an outdated method and is not recommended for verifying NG tube placement.
4. The healthcare provider is caring for a client with dehydration. Which assessment finding indicates that the client is responding to treatment?
- A. Dry mucous membranes
- B. Increased urine output
- C. Decreased heart rate
- D. Elevated blood pressure
Correct answer: B
Rationale: Increased urine output is the correct assessment finding that indicates the client is responding to treatment for dehydration. When a client is dehydrated, their urine output tends to decrease as the body tries to conserve fluids. Therefore, an increase in urine output suggests that the client's hydration status is improving. Dry mucous membranes (Choice A) are a sign of dehydration and would not indicate a positive response to treatment. Decreased heart rate (Choice C) and elevated blood pressure (Choice D) are not specific indicators of hydration status in a client with dehydration.
5. The healthcare provider prescribes morphine sulfate 4mg IM STAT. Morphine comes in 8 mg per ml. How many ml should the LPN/LVN administer?
- A. 0.5 ml
- B. 1 ml
- C. 1.5 ml
- D. 2 ml
Correct answer: A
Rationale: To administer 4 mg of morphine, as prescribed, the LPN/LVN needs to calculate the correct volume based on the concentration provided (8 mg per ml). Since the desired dose is 4 mg, half of 8 mg (0.5 ml) is required to administer the correct amount. Therefore, the correct answer is 0.5 ml. Choices B, C, and D are incorrect as they would either underdose or overdose the patient.
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