a child weighing 30 kg arrives at the clinic with diffuse itching as the result of an allergic reaction to an insect bite diphenhydramine benadryl 25
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NCLEX-RN

NCLEX RN Practice Questions Quizlet

1. A child weighing 30 kg arrives at the clinic with diffuse itching as the result of an allergic reaction to an insect bite. Diphenhydramine (Benadryl) 25 mg 3 times a day is prescribed. The correct pediatric dose is 5 mg/kg/day. Which of the following best describes the prescribed drug dose?

Correct answer: B

Rationale: The correct pediatric dose of diphenhydramine is 5 mg/kg/day. This child weighs 30 kg, so the calculated dose would be 5 mg/kg x 30 kg = 150 mg/day. Since the prescription is for 25 mg 3 times a day, the total daily dose is 25 mg x 3 = 75 mg/day, which is lower than the calculated dose of 150 mg/day. Therefore, the prescribed dose of 25 mg 3 times a day is too low for this child. The dose should be adjusted to meet the correct dosage of 150 mg/day, which would be 50 mg 3 times a day. It is important not to titrate the dosage based on symptoms without consulting a physician, as this can lead to inappropriate medication administration.

2. The nurse monitors a patient after chest tube placement for a hemopneumothorax. The nurse is most concerned if which assessment finding is observed?

Correct answer: B

Rationale: The nurse should be most concerned if 400 mL of blood is observed in the collection chamber as it may indicate the patient is at risk of developing hypovolemic shock. A large air leak in the water-seal chamber is expected initially after chest tube placement for a pneumothorax. While pain with deep inspiration should be treated, it is not as urgent as the risk of continued hemorrhage. Subcutaneous emphysema is not uncommon in a patient with pneumothorax and is usually harmless. However, a large amount of blood in the collection chamber is a more critical finding that requires immediate attention to prevent potential complications.

3. A home health nurse is at the home of a client with diabetes and arthritis. The client has difficulty drawing up insulin. It would be most appropriate for the nurse to refer the client to

Correct answer: B

Rationale: An occupational therapist from the community center would be the most appropriate referral for this client. Occupational therapists specialize in helping individuals improve fine motor skills, which are essential for tasks like drawing up insulin injections. A social worker typically focuses on psychosocial aspects, a physical therapist on physical mobility, and another client with diabetes would not have the professional expertise to address the client's specific needs related to insulin preparation.

4. A systolic blood pressure of 145 mm Hg is classified as:

Correct answer: C

Rationale: A systolic blood pressure of 145 mm Hg falls within the range of 140-159 mm Hg, which is classified as Stage I hypertension. Normotensive individuals have a systolic blood pressure less than 120 mm Hg, making choice A incorrect. Prehypertension is characterized by a systolic blood pressure ranging from 120-139 mm Hg, excluding choice B. Stage II hypertension is diagnosed when the systolic blood pressure is greater than 160 mm Hg, making choice D incorrect. Therefore, the correct classification for a systolic blood pressure of 145 mm Hg is Stage I hypertension.

5. When taking the blood pressure (BP) on the right arm of a patient with severe acute pancreatitis, the nurse notices carpal spasms of the patient's right hand. Which action should the nurse take next?

Correct answer: C

Rationale: In this scenario, the nurse observed carpal spasms in the patient's right hand, indicating a positive Trousseau's sign, which is associated with hypocalcemia. Patients with acute pancreatitis are at risk for hypocalcemia, hence the nurse should promptly check the calcium level in the chart to assess the patient's condition. Notifying the healthcare provider comes after confirming the calcium level. There is no indication to ask about arm pain or to retake the blood pressure, as the primary concern is addressing the potential hypocalcemia.

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