Which lab value indicates that TPN treatment for a cancer patient is effective?

The indication that total parenteral nutrition (TPN) treatment is effective in a cancer patient can be seen through the albumin level. Albumin is a significant protein synthesized by the liver that plays a key role in maintaining oncotic pressure and carrying various substances in the blood. A level of 4.2 g/dL suggests that the patient is receiving adequate nutrition, as it indicates a sufficient protein intake and overall nutritional status.

During cancer treatment, especially when patients may have reduced oral intake due to nausea, vomiting, or other symptoms, TPN is utilized to ensure they receive essential nutrients. A stable or rising serum albumin level in response to TPN reflects improved nutritional status and suggests that the patient’s metabolic needs are being met effectively.

In contrast, other lab values may not directly correlate with nutritional efficacy from TPN. While a hematocrit level of 43% might indicate hydration status and blood volume, it doesn't specifically reflect nutritional improvement. A white blood cell count of 8,000/uL is within the normal range, reflecting immune status rather than nutritional status. Calcium levels, while important for various bodily functions, do not provide specific insight into the overall effectiveness of TPN in terms of protein and calorie intake.

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