laboratory diagnostic - drugs - Gentamicine, serum/EDTA or heparin plasma 1ml refrigerated. Collect the sample berfore administration and 30 min after intra-venous or 1 hr after intra-muscular administration. All requests must ALWAYS contain: sampling date and time; the date and time of the last dose; the reasons for the prescription (efficiency and/or toxicity test); the treatment start date and/or the date of any change of dosage; the subject's age, height and weight, when possible; the dosage data (quantity administered, frequency, administration route), Immunoturbidimetry,ssso, todylaboratories®, bmn, code L16LD1418