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DaniBrook DaniBrook
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A month ago
A patient who was admitted to the intensive care unit after serious trauma ten days ago has been receiving parenteral nutrition and has since stabilized. To monitor the effects of this nutritional plan the nurse will check which serum laboratory test result?
1. Albumin
2. Prealbumin
3. Nitrogen
4. Total lymphocyte count
Textbook 

High-Acuity Nursing


Edition: 6th
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billyhillybillyhilly
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A month ago
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The answer is 2
Rationale:
1. Albumin has a half-life of 15 to 20 days and is heavily influenced by hydration status and hepatocellular injury. These factors make it of little value for assessing acute changes in nutritional status, but it is valuable for tracking long-term changes in protein status. Albumin, therefore, should not be used as an indicator to detect early malnutrition or effectiveness of nutrition support.
2. The half-life of prealbumin is 48 to 72 hours and is considered a more reliable indicator of acute changes in catabolism than serum albumin. Prealbumin is not influenced by hydration, renal, or liver status to the same extent as albumin. Periodic monitoring of prealbumin provides an indication of the effectiveness of nutrition support and the overall catabolic state.
3. Urine nitrogen tests can be used to measure protein status.
4. Measurement of the total lymphocyte count (TLC) provides some quantification of the effect of protein loss on immune system functioning. It is not used to monitor overall nutritional status.
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