A nurse is caring for a client who has been vomiting and has diarrhea. Which of the following findings should the nurse identify as an indication of fluid volume deficit?
BUN 18 mg/dL.
A thready pulse.
Hemoglobin 15 g/dL.
Prominent neck veins.
The Correct Answer is B
The correct answer is choice B: A thready pulse.
Choice A rationale:
BUN (blood urea nitrogen) level of 18 mg/dL falls within the normal range, which is typically around 7-20 mg/dL. An elevated BUN might indicate dehydration or kidney dysfunction, but a value of 18 mg/dL does not necessarily suggest fluid volume deficit.
Choice B rationale:
A thready pulse is a weak and easily compressible pulse that indicates poor circulation and reduced fluid volume in the circulatory system. Vomiting and diarrhea lead to fluid loss, which can result in fluid volume deficit. Thus, a thready pulse is a significant finding in this context.
Choice C rationale:
Hemoglobin level of 15 g/dL is within the normal range for hemoglobin (usually around 12-16 g/dL for women and 14-18 g/dL for men). While vomiting and diarrhea can lead to mild dehydration, a hemoglobin level of 15 g/dL alone does not strongly suggest fluid volume deficit.
Choice D rationale:
Prominent neck veins are typically associated with increased central venous pressure, which can indicate fluid volume overload rather than fluid volume deficit. In the context of vomiting and diarrhea, neck veins are unlikely to become prominent due to volume depletion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choice D. The client has tenderness and warmth in their calf.
Choice A rationale:
The client's self-reported incisional pain level of 7 on a scale of 0 to 10 is important information to assess postoperative recovery, but it is not the priority finding to report among the choices. Pain management is crucial, but potential complications that could be more urgent should be addressed first.
Choice B rationale:
Increased nausea and chills are concerning postoperative findings, but they could be related to the body's response to surgery, anesthesia, or pain medications. While these symptoms should be monitored and managed, they are not as high-priority as potential complications involving the calf.
Choice C rationale:
An oral temperature of 38.5°C (101.3°F) indicates a fever and is also a concerning finding in the postoperative period. Infection could be a possible cause, and the provider should be informed. However, compared to tenderness and warmth in the calf, which could suggest deep vein thrombosis (DVT), the fever is of slightly lower priority.
Choice D rationale:
Tenderness and warmth in the calf are the priority findings to report. These symptoms raise concern about the possibility of deep vein thrombosis (DVT), a serious complication after surgery. DVT occurs when a blood clot forms in a deep vein, commonly in the legs. If left untreated, it can lead to a pulmonary embolism, a life-threatening condition where the clot travels to the lungs. Immediate assessment and intervention are necessary to rule out or address this potentially critical complication.

Correct Answer is A
Explanation
The correct answer is Choice A - Measure the client's gastric residual before each feeding.
Choice A rationale:
The nurse's first action in caring for a client receiving intermittent enteral feedings should be to measure the client's gastric residual before each feeding. Gastric residual volume helps assess the client's tolerance to enteral feedings and can indicate delayed gastric emptying or potential complications like aspiration. If the residual volume is high, the nurse can collaborate with the healthcare team to determine whether to hold the feeding, adjust the feeding rate, or take other appropriate actions to ensure the client's safety and optimal nutritional status.
Choice B rationale:
Changing the enteral feeding bag and tubing every 24 hours is important to maintain the sterility and integrity of the feeding system. However, it is not the first action the nurse should take. The priority is to assess the client's tolerance to the feeding by measuring gastric residuals, which helps prevent complications.
Choice C rationale:
Documenting intake and output is a crucial aspect of nursing care for all clients, including those receiving enteral feedings. However, in the context of intermittent enteral feedings, measuring gastric residuals before each feeding is a more immediate and specific action to ensure the client's safety and well-being.
Choice D rationale:
Flushing the tubing with 30 mL of water after each feeding is important to prevent clogging and maintain the patency of the enteral feeding tube. However, this action is secondary to measuring gastric residuals, which directly assesses the client's tolerance to the feedings and helps prevent complications.
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