a heparin infusion is prescribed for a client who weighs 220 pounds after administering a bolus dose of 80 unitskg the nurse calculates the infusion r
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Nursing Elites

HESI LPN

CAT Exam Practice Test

1. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?

Correct answer: B

Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.

2. A client is admitted with hepatitis A (HAV) and dehydration. Subjective symptoms include anorexia, fatigue, and malaise. What additional assessment should the nurse expect to find during the preicteric phase?

Correct answer: A

Rationale: During the preicteric phase of hepatitis A, the nurse should expect to find RUQ (right upper quadrant) abdominal pain. This pain is common in the early phase of hepatitis A and is associated with liver inflammation. Clay-colored stools (Choice B) are typically seen in the icteric phase when there is a lack of bile flow. Icteric sclera (Choice C) refers to yellowing of the eyes, which is a characteristic of the icteric phase. Pruritus (Choice D), which is itching of the skin, is also more commonly associated with the icteric phase when bile salts accumulate in the skin.

3. Four clients arrive on the labor and delivery unit at the same time. Which client should the nurse assess first?

Correct answer: B

Rationale: The correct answer is B. A biophysical profile score of 5 out of 8 indicates potential fetal distress, necessitating immediate assessment to ensure the well-being of the fetus. The other options, while important, do not suggest an immediate threat to the fetus' health. The 38-week primigravida with contractions every 10 minutes may be in early labor, the 41-week multigravida scheduled for induction can be assessed after addressing the immediate concern, and the 36-week multigravida with serial blood pressure can be assessed after ensuring the client with potential fetal distress is stabilized.

4. Why is it important to initiate nursing interventions that promote good nutrition, rest, exercise, and stress reduction for clients diagnosed with an HIV infection?

Correct answer: B

Rationale: The correct answer is B: 'Improve the function of the immune system.' Initiating interventions focusing on good nutrition, rest, exercise, and stress reduction aims to enhance the immune system function in clients with HIV infection. For individuals with HIV, maintaining a strong immune system is crucial in fighting the virus and preventing opportunistic infections. Choices A, C, and D are important aspects of care but are secondary to the primary goal of boosting the immune system to combat the effects of the HIV virus.

5. An adolescent male client is admitted to the hospital. Based on Erikson’s theory of psychosocial development, which nursing intervention best assists this adolescent’s adjustment to his hospital stay?

Correct answer: A

Rationale: Inviting the adolescent to participate in group activities aligns with Erikson's theory of psychosocial development, specifically the stage of developing social relationships. By engaging in group activities, the adolescent can interact with peers, fostering social skills and aiding in adjustment to the hospital environment. Choice B is incorrect as excessive reliance on phone calls to parents may hinder the adolescent's autonomy and independence, which are crucial aspects of Erikson's theory for this age group. Choice C, providing access to video games, while potentially offering entertainment, does not directly address the need for social interaction and relationship-building. Choice D, encouraging the adolescent to learn his way around the hospital, is important for familiarity but may not directly address the need for social interaction and adjustment in the hospital setting.

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