Come on an empty stomachMost blood tests need 8–12 hours without food. Water is fine, tea and coffee are not.
Mention your medicationSome drugs change the result. List what you are taking when you book, or tell the nurse.
No strain the day beforeWorkouts, saunas and alcohol in the 24 hours before skew biochemistry and hormone results.
A nurse can come to youSome laboratories collect the sample at home — the “Home visit” filter keeps only those in the list.