[Answered]: A 16-year-old male had his wisdom teeth removed and…

A 16-year-old male had his wisdom teeth removed and after 3 days he is still oozing from the incision site. He also has had recurrent nosebleeds since he was 3 years old. Initial screening test results plus mixing studies are performed on him, and the results are below: • PT: 10.8 sec (RR = 10-13sec) • INR: 1.08 • APTT: 50 sec (RR = 23-32sec) • NPP control: 28 sec (22-32s) • 1:1 50 sec • 1:2 32 sec • 1:4 22 sec • 1:8 17 sec 1. Based on the test results, the mixing study pattern is consistent with a/an [ Select] [“Inhibitor”, “Deficiency”, “Cannot be determined”] 2. Based on the entire panel of test results and the clinical findings, this suggests the patient has a/an [ Select] [“Factor inhibitor”, “Lupus anticoagulant”, “Factor deficiency in the intrinsic pathway”] 3. The appropriate follow up to these results is [ Select] [“Factor assay”, “Rerun the controls and repeat the mixing study”, “Modified mixing study with phospholipid”]