A nurse is providing teaching to a client who reports that her baby has yellow discharge forming at the circumcision site. Which of the following is an appropriate response by the nurse?

The correct answer is c. Cleanse the newborn immediately after delivery. This is because cleansing the newborn can reduce the risk of HIV transmission through exposure to maternal blood or fluids. The other options are not appropriate for the following reasons:

a. Administer IV antibiotics to the newborn. This is not necessary unless the newborn has signs of infection or sepsis. Antibiotics do not prevent or treat HIV infection.
b. Encourage the mother to breastfeed her newborn. This is contraindicated for mothers with HIV, as breastfeeding can transmit the virus to the infant. Mothers with HIV should avoid breastfeeding and use formula or donor milk instead.
d. Initiate contact precautions for the newborn. This is not required for newborns exposed to HIV, as HIV is not transmitted by casual contact. Standard precautions are sufficient to prevent the spread of HIV and other bloodborne pathogens.

The correct answer is Choice C.

Choice A rationale: Thiazide diuretics cause potassium and chloride loss, leading to metabolic alkalosis, not respiratory alkalosis. Hypokalemia decreases hydrogen ion excretion, increasing bicarbonate levels. Metabolic alkalosis is characterized by pH >7.45 and HCO₃⁻ >26 mEq/L rather than decreased PaCO₂.

Choice B rationale: Vomiting leads to metabolic alkalosis due to gastric acid loss. Hydrogen ion depletion increases bicarbonate concentration, shifting pH above normal. Arterial blood gases typically show increased HCO₃⁻ (>26 mEq/L) with a compensatory increase in PaCO₂ (>45 mmHg), not respiratory alkalosis.

Choice C rationale: Salicylate intoxication initially induces hyperventilation, reducing PaCO₂ levels below 35 mmHg and increasing pH above 7.45, leading to respiratory alkalosis. As toxicity progresses, metabolic acidosis may develop due to lactic acid accumulation, but early stages primarily present with respiratory alkalosis.

Choice D rationale: Hypoventilation leads to CO₂ retention, increasing PaCO₂ above 45 mmHg, forming carbonic acid (H₂CO₃) and causing respiratory acidosis. Blood gases show pH <7.35 with elevated PaCO₂, not respiratory alkalosis, which is caused by excessive CO₂ elimination through hyperventilation.