A nurse is preparing to administer diphenhydramine 50 mg PO every 6 hours to a client who has acute dystonia.

Available are diphenhydramine 25 mg tablets. How many tablets should the nurse administer per dose?

(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

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.

Choice A reason: Instructing the client to drink 1 liter of fluid each day may not be sufficient for someone with cystitis. Increasing fluid intake helps ?ush out bacteria from the urinary tract, and the general recommendation is to drink about 2 liters of water per day.

Choice B reason: While taking antibiotics is a crucial part of treating bacterial cystitis, the client should complete the full course of antibiotics prescribed, not just until symptoms such as dysuria disappear. This ensures the infection is fully treated and reduces the risk of resistance.

Choice C reason: Advising the client to avoid carbonated beverages is appropriate because such drinks can irritate the bladder and exacerbate symptoms of cystitis. It is also recommended to avoid ca?eine, alcohol, and spicy foods until the infection clears.

Choice D reason: There is no specific recommendation for clients with cystitis to drink tomato juice each day. In fact, tomato juice is acidic and may irritate the bladder, similar to carbonated beverages.