HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. A client is hospitalized for an infection of a surgical wound following abdominal surgery. To promote healing and fight wound infection, the nurse plans to arrange to increase the client's intake of:
- A. Vitamin C and Zinc
- B. Vitamin B12 and Calcium
- C. Vitamin D and Iron
- D. Vitamin A and Potassium
Correct answer: A
Rationale: The correct answer is A: Vitamin C and Zinc. Vitamin C is essential for collagen synthesis, which is important for wound healing. Zinc plays a crucial role in immune function and also aids in wound healing. Vitamin B12 and Calcium (Choice B) are not directly associated with wound healing properties. Vitamin D and Iron (Choice C) are important for overall health but are not specifically targeted for wound healing. Vitamin A and Potassium (Choice D) do not have direct wound healing properties and are not the best choices to promote wound healing and fight infection.
3. The client is receiving discharge instructions for a new antihypertensive medication. Which statement by the client indicates a need for further teaching?
- A. I will stop taking the medication if I experience dizziness.
- B. I will monitor my blood pressure regularly.
- C. I will avoid drinking alcohol while taking this medication.
- D. I will rise slowly from a sitting to a standing position.
Correct answer: A
Rationale: The correct answer is A. Stopping antihypertensive medication abruptly can lead to rebound hypertension, which can be dangerous. Clients should never discontinue their medication without consulting their healthcare provider first. Choice B is correct because monitoring blood pressure is essential when taking antihypertensive medication to ensure it stays within the target range. Choice C is correct as alcohol can potentiate the hypotensive effects of antihypertensive medications. Choice D is correct as orthostatic hypotension can occur, so rising slowly helps prevent dizziness and falls. Therefore, choice A is the statement that indicates a need for further teaching.
4. A healthcare provider is providing teaching about health promotion guidelines to a group of young adult male clients. Which of the following guidelines should the healthcare provider include?
- A. Obtain a tetanus booster every 5 years.
- B. Obtain a herpes zoster immunization by age 50.
- C. Have a dental examination every 6 months.
- D. Have a testicular examination every 2 years.
Correct answer: C
Rationale: Having a dental examination every 6 months is crucial for young adult males as it helps in maintaining good oral health and detecting any potential issues early on. Tetanus booster every 10 years is recommended for adults, not every 5 years (Choice A). Herpes zoster immunization is typically recommended for individuals aged 60 and older, not by age 50 (Choice B). While testicular self-examination is important for detecting testicular cancer, routine clinical testicular examinations are not generally needed every 2 years (Choice D). Therefore, the correct answer is to have a dental examination every 6 months.
5. A client has been sitting in a chair for 1 hour. Which of the following complications poses the greatest risk to the client?
- A. Decreased subcutaneous fat
- B. Muscle atrophy
- C. Pressure injury
- D. Fecal impaction
Correct answer: C
Rationale: The correct answer is C: Pressure injury. Prolonged sitting can lead to pressure injuries due to continuous pressure on certain body areas, reducing blood flow and causing tissue damage. While decreased subcutaneous fat, muscle atrophy, and fecal impaction are potential concerns, pressure injuries pose the greatest immediate risk as they can lead to serious complications such as tissue necrosis and infection if not addressed promptly. Decreased subcutaneous fat and muscle atrophy may develop over time with prolonged immobility but are not as acutely dangerous as a pressure injury. Fecal impaction, while uncomfortable and potentially serious, does not pose an immediate life-threatening risk compared to the development of a pressure injury.
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