This responds well to moist, warm compresses applied every 2 to 4 hours. Activity after test Return to pretest activities right away. Use warm compresses if blood collects under the puncture site or if the area becomes tender, red or painful. Time before test results available Several days. Test results Test Values Test results are determined by radio-immunoassay .
Test is usually done at the same time calcium level is determined.
Normal Values PTH levels vary, depending on the laboratory. Tests must be interpreted in association with calcium levels. Factors Affecting Results Taking these drugs may affect test results None expected. Other factors that may affect test results Failure to fast overnight. All rights reserved.