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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Hypervolemia is not typically associated with extensive burn injuries. Burn patients often experience hypovolemia due to fluid loss from the burn wounds.
Choice B rationale
Hyperkalemia is a common finding in patients with extensive burn injuries. The destruction of cells releases potassium into the bloodstream, leading to elevated potassium levels.
Choice C rationale
Low hemoglobin is not a typical finding in the initial phase of burn injury. Hemoglobin levels may decrease later due to blood loss or hemodilution.
Choice D rationale
Metabolic alkalosis is not commonly associated with extensive burn injuries. Burn patients are more likely to experience metabolic acidosis due to tissue hypoxia and lactic acid accumulation.
Correct Answer is B
Explanation
Choice A rationale
Unilateral joint involvement is not typical of rheumatoid arthritis. This condition usually affects joints symmetrically, meaning both sides of the body are involved. Rheumatoid arthritis is an autoimmune disorder where the immune system mistakenly attacks the synovium, leading to inflammation and joint damage.
Choice B rationale
Ulnar deviation is a common finding in rheumatoid arthritis. It occurs due to chronic inflammation and damage to the joints, particularly in the hands. The fingers may deviate towards the ulnar side (the side of the little finger) due to the weakening of the ligaments and tendons.
Choice C rationale
Decreased sedimentation rate is not a typical finding in rheumatoid arthritis. In fact, the erythrocyte sedimentation rate (ESR) is usually elevated in this condition due to the ongoing inflammation. ESR is a marker of inflammation and is used to monitor disease activity.
Choice D rationale
Fractures of the spine are not a common finding in rheumatoid arthritis. While osteoporosis can be a complication of rheumatoid arthritis, leading to an increased risk of fractures, the spine is not typically the primary site of joint involvement in this condition.
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