A nurse is providing teaching to a client who is experiencing preterm contractions and dehydration. Which of the following statements should the nurse make?

Choice A reason: Performing postural drainage immediately after meals risks aspiration and discomfort due to gastric contents shifting during positioning. It should be done 1-2 hours after meals to ensure safety and efficacy in clearing mucus from the lungs, making this timing inappropriate for cystic fibrosis management.
Choice B reason: Performing postural drainage twice daily is recommended for cystic fibrosis to mobilize thick mucus from the lungs, improving airway clearance and reducing infection risk. This frequency balances effectiveness with patient tolerance, aligning with evidence-based guidelines for managing chronic respiratory conditions, making it the correct action.
Choice C reason: Using a percussion vest is an alternative to manual postural drainage but is not specified as the only method. Manual techniques are effective and standard unless a vest is prescribed. This choice assumes equipment availability, which may not apply, making it less universally appropriate than scheduled manual drainage.
Choice D reason: Positioning the child flat during postural drainage is incorrect, as specific angled positions (e.g., head-down) are needed to target lung segments and promote mucus drainage by gravity. Flat positioning reduces effectiveness and may not clear airways adequately, making this an inappropriate technique for cystic fibrosis.

Choice A reason: A BMI of 32 indicates obesity, a risk factor for surgical wound infections due to impaired tissue perfusion, reduced immune response, and prolonged healing. Excess adipose tissue increases infection likelihood, aligning with evidence-based risk factors, making this the correct finding to identify.
Choice B reason: A temperature of 36.8°C is normal and does not indicate infection risk. Fever (>38°C) post-surgery might suggest infection, but this value reflects stable physiology, making it an incorrect indicator for assessing wound infection risk in this client.
Choice C reason: A white blood cell count of 8,000/mm³ is within normal range (5,000-10,000/mm³) and does not indicate infection risk. Elevated counts suggest active infection, but this value is unremarkable, making it incorrect for identifying infection risk post-surgery.
Choice D reason: A blood glucose of 90 mg/dL is normal (74-106 mg/dL) and does not increase infection risk. Hyperglycemia (>140 mg/dL) impairs immune function, but this value indicates good control, making it incorrect for assessing wound infection risk.