Correct Answer: B

Rationale: A heart rate of 120 beats per minute indicates tachycardia, which can be a sign of dehydration and requires intervention. A heart rate of 80 beats per minute is within the normal range and does not indicate dehydration. A blood pressure of 110/70 mmHg is considered normal. A respiratory rate of 16 breaths per minute is also within the normal range and does not point towards dehydration.

Correct Answer: D

Rationale: The correct answer is D: Chronic conditions. Chronic conditions, such as diabetes or immune suppression, can compromise the immune system, making individuals more susceptible to infections. Frequent handwashing (Choice A) is actually a protective measure against infections. Increased mobility (Choice B) and high blood pressure (Choice C) are not directly associated with an increased risk for infections.

Correct Answer: B

Rationale: The correct answer is B: Increased hematocrit. Increased hematocrit indicates hemoconcentration, which is a sign of fluid volume deficit. When there is a decrease in fluid volume in the body, the blood becomes more concentrated, leading to an increase in hematocrit levels. Choices A, C, and D are incorrect because decreased BUN levels, increased white blood cell count, and decreased hematocrit are not indicative of fluid volume deficit.

Correct Answer: B

Rationale: Nausea is a common sign of intolerance to enteral feedings and should be addressed promptly. Weight gain (Choice A) is not typically a sign of intolerance to enteral feedings but may indicate other health issues. Constipation (Choice C) is not a common sign of feeding intolerance. Decreased heart rate (Choice D) is not typically associated with intolerance to enteral feedings.

Correct Answer: B

Rationale: The correct answer is to 'Use sequential compression devices.' Sequential compression devices help prevent DVT by promoting venous return, reducing stasis in the veins, and preventing blood clot formation. Resting in bed for long periods (Choice A) can actually increase the risk of DVT due to decreased mobility. Avoiding leg exercises (Choice C) is also not recommended as mobilization and exercises can help prevent blood clots. Keeping legs crossed (Choice D) can impede blood flow and is not advisable in reducing the risk of DVT.