HESI LPN
HESI Practice Test for Fundamentals
1. When caring for a client with diarrhea due to Shigella, which of the following precautions should the nurse take?
- A. Wash hands before and after contact with the client
- B. Wear a surgical mask
- C. Use a face shield
- D. Wear a gown and gloves only
Correct answer: A
Rationale: The correct precaution for Shigella infection is to wash hands thoroughly before and after contact with the client. Shigella is transmitted through the fecal-oral route, so hand hygiene is crucial in preventing its spread. Wearing a surgical mask or face shield is not necessary for Shigella as it is not primarily transmitted through respiratory droplets. While wearing a gown and gloves is important for standard precautions, the key precaution specific to Shigella is proper hand hygiene.
2. When assessing a male client, the nurse finds that he is fatigued and is experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client's laboratory values to validate the existence of which condition?
- A. Hyperphosphatemia
- B. Hypocalcemia
- C. Hypermagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias are indicative of hypokalemia, a condition characterized by low potassium levels. Checking the client's laboratory values for potassium will help confirm this diagnosis. Hyperphosphatemia (Choice A) is an elevated phosphate level in the blood, which is not consistent with the symptoms described. Hypocalcemia (Choice B) is a low calcium level and typically presents with different symptoms than those mentioned in the scenario. Hypermagnesemia (Choice C) is an excess of magnesium in the blood and does not align with the symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias observed in the client.
3. A healthcare professional is preparing to administer an intramuscular injection to a young adult client. Which of the following injection sites is the safest for this client?
- A. Ventrogluteal
- B. Dorsogluteal
- C. Deltoid
- D. Vastus lateralis
Correct answer: A
Rationale: The ventrogluteal site is considered the safest for intramuscular injections in young adult clients due to its location away from major nerves and blood vessels. The ventrogluteal site is preferred over the dorsogluteal site, as the latter is associated with a higher risk of injury to the sciatic nerve. The deltoid site is commonly used for vaccines but may not be suitable for all intramuscular injections due to smaller muscle mass. The vastus lateralis site is often used in infants and young children, but in young adults, the ventrogluteal site is preferred for safety and efficacy.
4. A nurse on a medical-surgical unit is receiving a change-of-shift report for four clients. Which of the following clients should the nurse see first?
- A. A client who has new onset of dyspnea 24 hours after a total hip arthroplasty
- B. A client who has acute abdominal pain rated 4 on a scale from 0 to 10
- C. A client who has a UTI and low-grade fever
- D. A client who has pneumonia and an oxygen saturation of 96%
Correct answer: A
Rationale: The nurse should see the client who has new onset of dyspnea 24 hours after a total hip arthroplasty first. New onset of dyspnea, especially after surgery, can indicate a serious complication such as a pulmonary embolism or deep vein thrombosis. It is essential to assess this client promptly to rule out potentially life-threatening conditions. Acute abdominal pain, a UTI with low-grade fever, and pneumonia with an oxygen saturation of 96% are important issues but do not indicate the urgency and potential severity of a post-operative complication like pulmonary embolism or deep vein thrombosis.
5. An assistive personnel tells the nurse, 'I am unable to find a large blood pressure cuff for a client who is obese. Can I just use the regular cuff if I can get it to stay on?' The nurse replies that taking the blood pressure of a morbidly obese client with a regular blood pressure cuff will result in a reading that is:
- A. Low
- B. High
- C. Inaccurate
- D. Unaffected
Correct answer: B
Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.
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