While caring for a client receiving total parenteral nutrition (TPN), it is most important for the nurse to monitor which of the client's lab values?
Urinary ketones.
Serum protein.
Serum osmolarity.
Capillary glucose.
The Correct Answer is C
Choice A
Urinary ketones are not most important. Monitoring urinary ketones can provide information about the utilization of glucose and fat as energy sources. However, it is not the primary lab value to monitor in TPN administration.
Choice B
Serum protein is not most important. Monitoring serum protein levels is important to assess nutritional status, but it might not be as immediate a concern as serum osmolarity.
Choice C
Serum osmolarity is the most important. When caring for a client receiving total parenteral nutrition (TPN), monitoring serum osmolarity is most important. TPN is a highly concentrated solution containing various nutrients, and it is infused directly into the bloodstream. Serum osmolarity reflects the concentration of particles (such as electrolytes, glucose, and other solutes) in the blood. Monitoring serum osmolarity is crucial to prevent complications related to fluid and electrolyte imbalances that can arise from the administration of TPN.
Choice D
Capillary glucose is not the most important. Monitoring capillary glucose levels is important, especially in clients receiving TPN with added glucose. Hyperglycaemia is a potential complication of TPN. While glucose monitoring is important, it is secondary to monitoring serum osmolarity, which encompasses a broader range of solute concentrations.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A
Body mass index (BMI) of 17 is the correct finding. A low Body Mass Index (BMI) is a common indicator of malnutrition. BMI is a measurement that considers a person's weight in relation to their height. A BMI of 17 suggests that the person is underweight, which can be indicative of malnutrition. Malnutrition is characterized by inadequate intake of calories, protein, vitamins, and minerals that are essential for maintaining health and well-being.
Choice B
Decrease in appetite is not correct finding. While a decrease in appetite might contribute to malnutrition, it's a symptom rather than a definitive indicator.
Choice C
Dry mucosal membranes are not the correct finding. Dry mucosal membranes can be related to dehydration or other conditions, but they are not specific enough to confirm malnutrition on their own.
Choice D
Weight of 227 pounds (103 kg) is not the correct finding. This weight is not necessarily indicative of malnutrition on its own. It's important to consider the individual's height, BMI, and other factors when assessing malnutrition.

Correct Answer is C
Explanation
Choice A
"The bruises on my arms are all gone." This statement is incorrect. Bruising can be influenced by various factors, including platelet levels and clotting factors, but it is not a specific sign of Vitamin A deficiency.
Choice B
"My feet don't tingle like they used to. “This statement is incorrect. Tingling feet might be related to nerve function or circulation, but it is not a direct symptom of Vitamin A deficiency.
Choice C
"I can see at night when I wake up now. “This statement is correct. Vitamin A is essential for maintaining good vision, especially in low-light conditions. Deficiency of Vitamin A can lead to a condition called night blindness, where individuals have difficulty seeing in low light. Therefore, the statement "I can see at night when I wake up now" (option C) indicates that an adequate amount of Vitamin A is being provided.
Choice D
"My tummy seems so much smaller now. “This statement is incorrect. Changes in tummy size are not typically related to Vitamin A deficiency. Vitamin A deficiency is more closely associated with symptoms related to vision and immune function.

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