A patient is hemorrhaging from multiple trauma sites. The nurse expects that compensatory mechanisms associated with hypovolemia would cause all of the following symptoms except:

Correct Answer: A

Rationale: The correct answer is A: Hypertension. In hypovolemia, the body compensates by increasing heart rate (B: Tachycardia) to maintain perfusion, decreasing urine output (C: Oliguria) to conserve fluid, and increasing respiratory rate (D: Tachypnea) to improve oxygenation. Hypertension is not a typical compensatory response to hypovolemia; instead, blood pressure tends to decrease due to reduced circulating volume. Therefore, hypertension is the symptom that would not be expected in a patient with hypovolemic shock.

Correct Answer: C

Rationale: Step 1: The optimal suctioning pressure for adults is usually between 80-120 mmHg. Step 2: Choice C falls within this recommended range (95-110 mmHg). Step 3: Higher pressures (like in choices B and D) can cause tissue damage. Step 4: Lower pressures (like in choice A) may not effectively remove secretions. Summary: Choice C (95-110 mmHg) is correct as it falls within the safe and effective suctioning pressure range for adults, while the other choices are either too high or too low, risking harm or inefficiency.

Correct Answer: B

Rationale: The correct answer is B: Potato. Potatoes are high in potassium, which is essential for various bodily functions. Potatoes can help increase potassium intake in patients who require it. Bread, eggs, and cereal are not as rich in potassium as potatoes. Increasing intake of these foods won't provide the necessary boost in potassium levels needed for the patient.

Correct Answer: C

Rationale: The correct answer is C: 5% dextrose in 0.9% NaCl. This solution is hypertonic because it has a higher osmolarity compared to the other choices. The presence of dextrose and NaCl in this solution increases its solute concentration, causing water to move out of the cells by osmosis. Normal saline (A) and 0.45% NaCl (B) are isotonic solutions, meaning they have the same osmolarity as body fluids. 0.225% NaCl (D) is a hypotonic solution with lower osmolarity than body fluids.

Correct Answer: B

Rationale: Step 1: Crowded living conditions do not directly increase the risk of lung cancer. Step 2: Passive smoke (choice A) and air pollution (choice C) contain carcinogens linked to lung cancer. Step 3: Diet low in fruits and vegetables (choice D) may lead to poor immune function, potentially impacting cancer risk. Step 4: In summary, crowded living conditions do not contribute to lung cancer risk compared to the other choices.