A client who has polycystic kidney disease (PKD) presents to the emergency department with reports of a severe headache. Which of the following complications should the nurse expect?

Step 1: The total amount of amantadine required per dose is 150 mg.

Step 2: Each 5 mL of syrup contains 50 mg of amantadine.

Step 3: To find out how many mL are needed, we divide the total amount required by the amount in each 5 mL of syrup. So, (150 mg ÷ 50 mg/5 mL).

Step 4: The result is 15 mL.

So, the nurse should administer 15 mL per dose. This is already a whole number, so no rounding is necessary.

Choice A reason: A pH of 7.26 indicates acidosis, but an HCO3 of 24 and PaCO2 of 46 suggest a respiratory cause rather than metabolic, which is not typical for AKI.

Choice B reason: A pH of 7.49 indicates alkalosis, and with an HCO3 of 30 and PaCO2 of 40, this suggests metabolic alkalosis, which is not expected in AKI.

Choice C reason: A pH of 7.49 indicates alkalosis. An HCO3 of 24 is normal, and a PaCO2 of 30 would suggest respiratory alkalosis, not typically associated with AKI.

Choice D reason: A pH of 7.26 indicates acidosis, and with an HCO3 of 14, this suggests metabolic acidosis, which is consistent with AKI. The PaCO2 of 30 indicates a compensatory respiratory response to the metabolic acidosis. This ABG result aligns with the expected findings in a patient with AKI, where there is an accumulation of acids and a decrease in bicarbonate due to the kidneys' inability to filter and excrete hydrogen ions effectively.