Resume taking any medications witheld before the test. Use warm compresses if blood collects under the puncture site or if the area becomes tender, red or painful. Time before test results available Test requires only a few minutes in the laboratory. Time before results are reported to the doctor or patient varies from a few Test results Test Values Test results are determined by timing the interval for clotting to occur. Normal Values Prothrombin consumption is normally complete after 20 seconds.
Abnormal results require further tests to confirm diagnosis.
Factors Affecting Results Taking these drugs may affect test results Anti-coagulants. Other factors that may affect test results None expected. All rights reserved.