HESI LPN
HESI CAT Exam 2022
1. A new mother asks the nurse if the newborn infant has an infection because the healthcare provider prescribed a blood test called the TORCH screen test. Which response should the nurse offer to the mother's inquiry?
- A. Rising titers identify the etiology of certain neuro-sensory birth defects
- B. The screen determines the risk for inherited anomalies in the newborn
- C. The test identifies the correct antibiotic to give the newborn for an infection
- D. Exposure to infections that can cross the placenta cause a positive antibody titer
Correct answer: D
Rationale: The TORCH screen test is used to detect infections that can affect the newborn by showing if there was exposure to these infections. Choice A is incorrect because the TORCH screen test is not specifically for identifying the etiology of neuro-sensory birth defects. Choice B is incorrect because the test does not determine the risk for inherited anomalies. Choice C is incorrect because the test is not used to identify the correct antibiotic for an infection, but rather to detect infections that may have affected the newborn.
2. A client receives a prescription for acetylcysteine (Mucomyst) 1.4 grams per nasogastric tube q4 hours. Acetylcysteine is available as a 10% solution (10 grams/100ml). How many ml of the 10% solution should the nurse administer per dose?
- A. 7
- B. 10
- C. 14
- D. 1.4 grams of acetylcysteine is equivalent to 14 ml of a 10% solution.
Correct answer: D
Rationale: To determine the amount of the 10% acetylcysteine solution to administer, convert the 1.4 grams to milligrams (1.4 grams = 1400 mg). Then, as the 10% solution contains 10 grams (10,000 mg) per 100 ml, it means there are 1000 mg of acetylcysteine in every 10 ml of the solution (10,000 mg / 100 ml = 100 mg/ml). Therefore, to administer 1400 mg (1.4 grams) of acetylcysteine, the nurse should give 14 ml of the 10% solution. Choices A, B, and C are incorrect as they do not accurately convert the amount of acetylcysteine to the corresponding volume of the 10% solution.
3. A high school football player comes to the clinic complaining of severe acne. The mother reports recent behavior changes, including irritability and suspiciousness of friends. The nurse’s assessment reveals an elevated blood pressure. Which intervention should the nurse implement first?
- A. Encourage the client to see a dermatologist
- B. Refer the adolescent to a substance abuse program
- C. Suggest a low-salt, low-fat, and caffeine-free diet
- D. Inquire about a possible use of anabolic steroids
Correct answer: D
Rationale: In this scenario, the high school football player presenting with severe acne, behavior changes, elevated blood pressure, and suspicion of friends suggests the possible use of anabolic steroids. Anabolic steroid use can lead to such symptoms. Therefore, the nurse should first inquire about the possible use of anabolic steroids to address the root cause of the presenting issues. Encouraging the client to see a dermatologist (Choice A) may be necessary but addressing the underlying cause is crucial first. Referring the adolescent to a substance abuse program (Choice B) is premature without confirming steroid use. Suggesting a low-salt, low-fat, and caffeine-free diet (Choice C) is not the priority in this situation where a serious issue like anabolic steroid use needs immediate attention.
4. The nurse is assessing a client with Addison's disease who is weak, dizzy, disoriented, and has dry oral mucous membranes, poor skin turgor, and sunken eyes. Vital signs are blood pressure 94/44, heart rate 123 beats/minute, respiration 22 breaths/minute. Which intervention should the nurse implement first?
- A. Assess extremity strength and resistance
- B. Report a sodium level of 132 mEq/L or mmol/L (SI units)
- C. Measure and record the cardiac QRS complex
- D. Check current finger stick glucose
Correct answer: D
Rationale: The client’s symptoms suggest possible adrenal crisis or hypoglycemia. Checking glucose is a priority to rule out hypoglycemia, which requires immediate intervention. The client is presenting with symptoms indicative of hypoglycemia, which can be life-threatening if not promptly addressed. Assessing extremity strength, reporting sodium levels, or measuring the cardiac QRS complex are not the most urgent actions in this scenario.
5. After medicating the client for pain and collecting granules and stones from strained urine, which action is most important for the nurse to implement next?
- A. Send the calculi for laboratory analysis of stone composition.
- B. Evaluate the client for persistent pain.
- C. Assess the clarity of urine.
- D. Encourage high fluid intake to produce urine output of 2L/day.
Correct answer: A
Rationale: Sending the calculi for analysis is crucial in determining the type of stone present. Identifying the stone composition helps in developing an effective treatment plan and preventive measures to avoid future episodes of urolithiasis. This step is essential in providing targeted care for the client. Options B, C, and D are not the most important actions at this point. While evaluating for persistent pain is essential, determining the stone composition takes precedence to guide appropriate interventions.
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