The suitability check: what the nurse assesses before opening a single sachet
Vital signs are the objective half of the check. Very low blood pressure with a racing heart suggests dehydration severe enough that a clinic, not a sofa, is the right setting. A fever changes the picture entirely, because masking an infection with fluids and vitamins delays real treatment. A responsible nurse will decline or defer the drip in these cases and escalate to the provider's doctor — and that refusal is the strongest quality signal in this entire industry. If your answers to the screening questions visibly do not matter to what happens next, stop the visit.
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.