Correct Answer: A

Rationale: An elevated hematocrit level (Hct 53%) indicates hemoconcentration, a sign of fluid volume deficit. Hct measures the percentage of red blood cells in the blood and increases when there is a decrease in plasma volume, as seen in fluid volume deficit. Choices B, C, and D do not directly relate to fluid volume status. Potassium and sodium levels are more indicative of electrolyte imbalances, while HbA1c reflects average blood sugar levels over the past 2-3 months and is not specific to fluid volume status.

Correct Answer: B

Rationale: Gastroesophageal reflux disease (GERD) is commonly associated with obesity due to increased abdominal pressure and other factors. Peptic ulcer disease (Choice A) is not commonly associated with obesity. Celiac disease (Choice C) is an autoimmune disorder triggered by gluten consumption and is not directly linked to obesity. Crohn's disease (Choice D) is a type of inflammatory bowel disease and is not specifically associated with obesity.

Correct Answer: D

Rationale: If the infant turns away after taking most of the feeding, it indicates they are full, and continuing to feed may lead to overfeeding. Choice A is incorrect because it is not safe to use formula that remains in the bottle for another feeding due to the risk of bacterial contamination. Choice B is incorrect as whole milk should be introduced after the infant is 12 months old, not 9 months old. Choice C is incorrect as diluting formula can compromise the infant's nutrition and should not be done without healthcare provider guidance.

Correct Answer: D

Rationale: Prealbumin is a sensitive indicator of protein status and nutrition, making it a priority for assessing nutritional adequacy in clients receiving TPN. Iron, magnesium, and folic acid levels are important for overall health but do not specifically indicate nutritional adequacy in the context of TPN administration.

Correct Answer: A

Rationale: An elevated hematocrit level (Hct 53%) indicates hemoconcentration, a sign of fluid volume deficit. Hct measures the percentage of red blood cells in the blood and increases when there is a decrease in plasma volume, as seen in fluid volume deficit. Choices B, C, and D do not directly relate to fluid volume status. Potassium and sodium levels are more indicative of electrolyte imbalances, while HbA1c reflects average blood sugar levels over the past 2-3 months and is not specific to fluid volume status.