HESI LPN
HESI CAT Exam Quizlet
1. An 8-year-old child who weighs 60 pounds receives an order for Polycilin (Ampicillin) suspension 25 mg/kg/day divided into a dose every 8 hours. The medication is labeled '125 mg/5 ml'. How many ml should the nurse administer per dose every 8 hours?
- A. 5
- B. 10
- C. 15
- D. 20
Correct answer: A
Rationale: Calculate the daily dose first: 60 pounds x 25 mg/kg = 1500 mg/day. Divide by 3 doses = 500 mg/dose. Convert to mL: (500 mg / 125 mg) x 5 ml = 20 ml. However, the question asks for the dose per administration every 8 hours, which is 1/3 of the daily dose. So, the correct calculation should be (20 ml / 3) = 6.67 ml, which rounds to 5 ml. Therefore, the correct answer is 5 ml. Choice B (10 ml) is incorrect because it doesn't consider the frequency of dosing. Choice C (15 ml) is incorrect as it overestimates the dose. Choice D (20 ml) is incorrect as it represents the total daily dose, not the dose per administration every 8 hours.
2. A male client reports the onset of numbness and tingling in his fingers and around his mouth. Which lab value is important for the nurse to review before contacting the health care provider?
- A. capillary glucose
- B. urine specific gravity
- C. Serum calcium
- D. white blood cell count
Correct answer: C
Rationale: The correct answer is C: Serum calcium. Numbness and tingling can be indicative of hypocalcemia, which can affect the nervous system. Reviewing serum calcium levels is crucial to address this potential issue. Options A, B, and D are not directly related to the symptoms described by the client and are not typically associated with numbness and tingling around the mouth and fingers. Capillary glucose levels are more relevant in assessing for diabetes or monitoring glucose control. Urine specific gravity is useful in evaluating hydration status. White blood cell count is typically checked to assess infection or immune response, which are not indicated by the client's symptoms of numbness and tingling.
3. A client with endometrial carcinoma is receiving brachytherapy and has radioactive Cesium loaded in a vaginal applicator. What action should the nurse implement?
- A. Wear a dosimeter film badge when in the client’s room
- B. Spend 30 minutes at the bedside when providing direct care
- C. Change the linens every day after assisting with a bed bath
- D. Use gloves to remove the applicator if it is dislodged in the bed
Correct answer: A
Rationale: The correct action for the nurse to implement when caring for a client with a radioactive Cesium-loaded vaginal applicator during brachytherapy is to wear a dosimeter film badge when in the client’s room. Wearing a dosimeter badge is essential to monitor radiation exposure and ensure the safety of healthcare providers. Choice B is incorrect as the duration is not specified and unnecessary. Choice C is incorrect as changing linens daily does not directly relate to radiation safety. Choice D is incorrect as using gloves to remove the applicator if dislodged is important but not the primary action to monitor radiation exposure.
4. A male client admitted three days ago with respiratory failure is intubated and receiving 40% oxygen per facemask. Currently, his temperature is 99°F, capillary refill is less than 4 seconds, and respiratory effort is within normal limits. What outcome should the nurse evaluate to measure for successful extubation?
- A. Exhibits adequate tissue perfusion
- B. Remains free of injury
- C. Remains free of infection
- D. Maintains effective breathing pattern
Correct answer: D
Rationale: Successful extubation is primarily measured by the client's ability to maintain an effective breathing pattern. This indicates that the client can adequately oxygenate and ventilate without the need for artificial airway support. Choices A, B, and C are important aspects of patient care but are not the primary outcomes to evaluate for successful extubation. Adequate tissue perfusion, freedom from injury, and prevention of infection are ongoing goals during the client's hospitalization but are not the immediate focus when considering extubation.
5. A 12-year-old client who had an appendectomy two days ago is receiving 0.9% normal saline at 50 ml/hour. The client’s urine specific gravity is 1.035. What action should the nurse implement?
- A. Encourage popsicles and fluids of choice
- B. Evaluate postural blood pressure measurements
- C. Obtain a specimen for urinalysis
- D. Assess bowel sounds in all quadrants
Correct answer: A
Rationale: Encouraging fluids helps address dehydration and potentially high urine specific gravity, which is often related to inadequate fluid intake. In this scenario, the client may be at risk of dehydration due to the appendectomy and the high urine specific gravity. Encouraging popsicles and fluids of choice can help increase fluid intake and improve hydration status. The other options are not the priority at this time. Postural blood pressure measurements may be relevant for assessing fluid status but are not the immediate action needed. Obtaining a specimen for urinalysis and assessing bowel sounds are not the priority actions based on the client's condition.
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