1) Some factors that are important in choosing a medication, route of admission, and the dose for a patient include the age of the patient (can affect medication prescribed and the dose), their height and weight (affects dose), any allergies or existing medical conditions(can affect medication, dose, and route of admission), what their illness is (or the symptoms it comes with), and gender (s e x)(can affect dose and medication)
2) Hospitals use saline solutions to hydrate patients instead of distilled water because saline solutions are made to match the electrolytes in your blood by having sodium and chloride in it, so it replenishes the patient. Distilled water does not have these and if injected into the patient, may cause the destruction/breakdown of red blood cells, and if it's in large amounts, could possibly lead to damage to the body and even death.
