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. Which medication should the nurse anticipate administering to a client who is diagnosed with myxedema coma?

Correct answer: A

Rationale: The correct answer is A: Intravenous administration of thyroid hormones. Myxedema coma is a severe form of hypothyroidism that necessitates immediate replacement of thyroid hormones. Administering thyroid hormones intravenously ensures rapid absorption and effectiveness in managing the condition. Choice B, oral administration of hypnotic agents, is incorrect as it does not address the primary issue of thyroid hormone deficiency in myxedema coma. Choice C, intravenous bolus of hydrocortisone, is not the appropriate treatment for myxedema coma as adrenal insufficiency is not the primary concern in this condition. Choice D, subcutaneous administration of vitamin K, is unrelated to the management of myxedema coma and does not address the underlying thyroid hormone deficiency that characterizes this condition.

3. Two hours after delivering a 9-pound infant, a client saturates a perineal pad every 15 minutes. Although an IV containing Pitocin is infusing, her uterus remains boggy, even with massage. The healthcare provider prescribes methylergometrine maleate (Methergine) 0.2 mg IM STAT. Which complication should the nurse be alert to this client developing?

Correct answer: D

Rationale: The correct answer is D: Hypertension. Methylergometrine maleate (Methergine) is a medication used to prevent or control postpartum hemorrhage by causing uterine contractions. One of the potential side effects is hypertension. Therefore, the nurse should closely monitor the client's blood pressure after administering Methergine. Choices A, B, and C are incorrect because Methergine is not known to cause decreased respiratory rate, increased temperature, or tachycardia.

4. When preparing to discharge a male client who has been hospitalized for an adrenal crisis, the client expresses concern about having another crisis. He tells the nurse that he wants to stay in the hospital a few more days. Which intervention should the nurse implement?

Correct answer: B

Rationale: The correct intervention is to schedule a follow-up appointment for an outpatient psychosocial assessment. This option addresses the client's concerns and provides support for managing stress and preventing future crises, which is crucial for the client's long-term care. Administering antianxiety medication before providing discharge instructions (Choice A) may not effectively address the underlying concerns. Obtaining a blood cortisol level before discharge (Choice C) is important but not the priority in this situation. Encouraging the client to remain in the hospital for a few more days (Choice D) is not the best course of action as it may not address the client's anxiety and could potentially lead to other issues.

5. When gathering subjective data from a client, what intervention should the nurse implement first?

Correct answer: B

Rationale: Establishing rapport is the initial step the nurse should take when gathering subjective data from a client. Building trust and a good relationship with the client creates an environment where the client feels comfortable sharing accurate and honest information. Listening attentively is important but should come after rapport is established to enhance active listening. Listing problems and clarifying inferences are actions that occur later in the assessment process, after the nurse has established a good rapport and obtained a comprehensive understanding of the client's perspective. Therefore, option B is the correct answer.

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