The suitability check: what the nurse assesses before opening a single sachet
A proper visit begins with ten minutes of questions and measurements, and this stage is diagnostic, not ceremonial. The nurse takes your blood pressure, heart rate, oxygen saturation and temperature, and asks about kidney disease, heart failure, hypertension, diabetes, pregnancy, current medications and allergies. Each question maps to a real failure mode. Extra fluid volume is exactly what a weakened heart or impaired kidneys cannot handle — infuse a litre into someone with undiagnosed heart failure and you can push fluid into their lungs. A history of allergic reactions changes which additives are safe. Certain medications interact with magnesium or potassium in the bag.
You will also be asked to sign a consent form that names the fluid, the additives and the known risks. Read it. It should match what you booked, list actual ingredients rather than a brand name like 'glow cocktail', and carry the provider's licence details.