A nurse is reviewing a client's 0800 laboratory values at 1100. The nurse notes that the client received heparin at 1000. Which of the following laboratory values warrants an incident report?

The correct answer is A: ePTT 90 seconds. This value indicates a higher than normal clotting time, which could potentially lead to bleeding complications due to excessive anticoagulation from heparin. The other values (B, C, D) are within normal ranges and do not indicate an immediate risk or adverse outcome related to heparin administration. An incident report is necessary to document and address the elevated ePTT to ensure appropriate interventions are taken to prevent harm to the patient.