From a single venipuncture, two specimens are collected in separate tubes: one tube for initial HCV antibody testing; and a second tube for HCV NAT if the HCV antibody test is reactive.
The same sample of venipuncture blood used for initial HCV antibody testing, if reactive, is reflexed to HCV NAT without another blood draw for NAT (13).
A separate venipuncture blood sample is submitted for HCV NAT if the OraQuick HCV Rapid Antibody Test for initial testing of HCV antibody has used fingerstick blood.
Similarly, on page 1699, the Figure should indicate that the first kidney recipient's specimen was received by the hospital laboratory on September 19, and the positive HCV NAT
result was reported on September 20.
The donor's HCV antibody tested negative on both organ and tissue donor screening, but misreading of the reaction wells on testing led to an incorrectly reported negative HCV NAT result.
Liver function tests continued to be elevated, and HCV NAT performed September 19 was positive.
The recipient of the second kidney, a woman aged 46 years, was noted to have elevated liver function tests on August 25 (AST: 206 U/L, ALT: 221 U/L); HCV NAT was positive September 21.
As of December 16, initial test results from 14 of the musculoskeletal tissue recipients were known, and all were negative based on HCV NAT.