A nurse is preparing to start an IV infusion of lactated Ringer’s for a client who sustained a burn injury.

The client is prescribed 5,200 mL of fluid over the first 24 hr. How many mL/hr should the nurse set the pump to infuse for the first 8 hr? (Round the answer to the nearest whole number.

Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["325"]

Step 1 is to determine the total volume of fluid to be infused in the first 8 hours. According to the Parkland formula for fluid resuscitation, half of the prescribed volume is administered in the first 8 hours. Thus:

Total fluid for the first 8 hours = 5,200 mL ÷ 2 = 2,600 mL.

Step 2 is to calculate the infusion rate in mL/hr for the first 8 hours. Divide the total volume for the first 8 hours by the total time in hours:

Infusion rate = 2,600 mL ÷ 8 hr = 325 mL/hr.

Final calculated answer: 325 mL/hr.

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Correct Answer is D

Explanation

Choice A rationale

Loss of appetite is a common symptom of appendicitis due to the inflammation and irritation of the gastrointestinal tract. This symptom alone does not indicate an immediate need for intervention.

Choice B rationale

Nausea and vomiting are also common symptoms of appendicitis. The pain and inflammation can stimulate the vomiting center in the brain, leading to nausea. This symptom, while uncomfortable, does not require immediate intervention.

Choice C rationale

Pain that worsens with movement, such as positioning on the right side, is typical of appendicitis. This is due to the irritation of the peritoneum and the inflamed appendix. This symptom is expected and does not require immediate intervention.

Choice D rationale

The sudden disappearance of pain in a patient with appendicitis can indicate a rupture of the appendix. This is a medical emergency as it can lead to peritonitis, a severe and potentially life- threatening infection of the abdominal cavity. Immediate intervention is required to prevent complications.

Correct Answer is ["325"]

Explanation

Total fluid for the first 8 hours = 5,200 mL ÷ 2 = 2,600 mL.

Step 2 is to calculate the infusion rate in mL/hr for the first 8 hours. Divide the total volume for the first 8 hours by the total time in hours:

Infusion rate = 2,600 mL ÷ 8 hr = 325 mL/hr.

Final calculated answer: 325 mL/hr.

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Naxlex Comprehensive Predictor Exams

A 20-year-old diagnosed with appendicitis is being assessed by the nurse. Which statement by the client will make the nurse intervene immediately?

Correct Answer is D

Explanation

Correct Answer is ["325"]

Explanation

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