Correct Answer: A

Rationale: The correct answer is A because tachycardia (increased heart rate) and dilated pupils are classic responses of the sympathetic nervous system activation. Sympathetic nervous system is responsible for the fight or flight response, leading to increased heart rate and dilated pupils to prepare the body for quick action. Choice B is incorrect because hypoglycemia and headache are not specific to sympathetic nervous system function. Choice C is incorrect because increased peristalsis and abdominal cramping are more indicative of parasympathetic nervous system activity. Choice D is incorrect because pupil constriction and bronchoconstriction are actions of the parasympathetic nervous system, responsible for rest and digest functions.

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: 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: Correct Answer: B Rationale: Measuring intake and output and recommending increased fluid intake for a client with pyelonephritis is crucial to help flush out infectious microorganisms from the urinary tract. By increasing fluid intake, the client will urinate more frequently, aiding in the removal of bacteria causing the infection. This helps in reducing the bacterial load in the urinary tract and promoting faster recovery. Monitoring intake and output also helps ensure the client is adequately hydrated. Summary of Other Choices: A: Monitoring intake and output is more about assessing hydration status and kidney function rather than the response to therapy. C: Intake and output measurement does not directly determine the location of discomfort in pyelonephritis. D: Monitoring intake and output is not primarily for detecting changes but for ensuring proper fluid balance and aiding in infection clearance.

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.