Final answer:
Epinephrine is the recommended vasopressor in VF during CPR, with a dose of 1 mg every 3 to 5 minutes. For dehydration, isotonic crystalloid solutions like Normal Saline or Lactated Ringers are used.
Step-by-step explanation:
The question is about the administration of a vasopressor to a patient experiencing Ventricular Fibrillation (VF). In the context of cardiac arrest, the Advanced Cardiovascular Life Support (ACLS) guidelines recommend the use of Epinephrine 1 mg every 3 to 5 minutes during cardiopulmonary resuscitation (CPR). This dose is chosen to increase coronary and cerebral perfusion pressure during CPR, which is vital in improving the chances of restoring spontaneous circulation.
For a dehydrated human patient requiring intravenous fluids, the administration of an isotonic crystalloid solution, such as Normal Saline (0.9% Sodium Chloride) or Lactated Ringer's solution, is common practice. The exact volume and rate depend on the patient's clinical status and degree of dehydration.