What is the recommended approach to fluid resuscitation for suspected hypovolemia in flight?

• A. Administer isotonic fluids rapidly without monitoring.
• B. Use only colloids and avoid isotonic fluids.
• C. Administer large-volume boluses early to restore BP.
• D. Administer isotonic fluids cautiously with continuous monitoring and avoid rapid large-volume boluses.

Answer: (D)

In flight resuscitation for suspected hypovolemia, the safe and effective approach is to use isotonic fluids in measured amounts while continuously monitoring the patient, and to avoid rapid large-volume boluses. Isotonic crystalloids expand the intravascular space and help restore perfusion, but delivering them too quickly without ongoing assessment can overwhelm the heart, worsen edema, and strain transport resources with limited monitoring. By giving small fluid challenges one at a time and closely watching vital signs, mental status, urine output, and perfusion indicators, you can judge fluid responsiveness and titrate therapy to the patient’s needs. If the patient doesn’t respond or shows signs of fluid overload, you can adjust the plan rather than pushing large volumes upfront. This balances correcting hypovolemia with safety in the aeromedical environment.