Which of the following is an immediate nursing focus when dehydration is suspected?

• A. Fluid resuscitation to restore volume
• B. Initiate antibiotic therapy
• C. Start high-flow oxygen
• D. Place on a fluid-restriction plan

Answer: (A)

Restoring circulating volume is the immediate priority when dehydration is suspected. Dehydration causes intravascular volume loss, which decreases venous return to the heart and compromises tissue perfusion. The fastest, most reliable way to reverse this is to give fluids to restore the intravascular volume, stabilize blood pressure, and improve organ perfusion. In practice, this means initiating IV access and administering isotonic crystalloids (such as normal saline or lactated Ringer’s) promptly, with the rate guided by the patient’s vital signs, urine output, mental status, and estimated fluid deficit.

Antibiotics are not the first step unless there is a confirmed infection contributing to the dehydration. High-flow oxygen is only indicated if there is hypoxemia or another respiratory issue. A fluid-restriction plan would worsen dehydration and is inappropriate in this scenario. For mild dehydration with adequate intake ability, oral rehydration can be used, but when dehydration is suspected with signs of hypovolemia, IV fluid resuscitation takes priority to restore perfusion.