| Collection & Request Instructions | Urine, Blood and Faeces should be collected for a thorough investigation of porphyrias.
When abnormal concentrations of porphyrins are found, individual porphyrins will be identified and quantitated. | Urine, Blood and Faeces should be collected for a thorough investigation of porphyrias.
When abnormal concentrations of porphyrins are found, individual porphyrins will be identified and quantitated. |