I would advise you do also the boood plasma test for both metanephrines and catochalimines. My doc only ordered the 24 hrs urine test and for 2 years i thought my para was dormant. Blood plasma showed crazy levels of dopamine. I discovered thru a ultrasound of the thyroid. My primary care suspected i had swollen glands. But it turned out i had a 5 cm psraganglioma ... 🙁