Thyroid uptake Measures the ability of the thyroid to take up iodine. See below for a full description. Blood is drawn before and at 30 minutes after the dose. May cause flushing, nausea, and an urgent need to urinate. Blood is tested for TSH, which should rise somewhat.
Results are low in hyperthyroidism, elevated in hypothyroidism.
Results are higher in childhood and during pregnancy. Urinary nephrogenous cyclic AMP Urinalysis that estimates the action of parathyroid hormone. Water deprivation test Used to evaluate excessive thirst and urination. Published under license from Houghton Mifflin Company. All rights reserved.