If a client’s aPTT level is 80 seconds during heparin therapy, what action should the nurse take?

In the context of heparin therapy, the activated partial thromboplastin time (aPTT) test is a critical tool for monitoring the effectiveness and safety of the anticoagulant. The typical therapeutic range for aPTT while on heparin is generally between 1.5 to 2.5 times the normal value, which typically translates to about 40 to 70 seconds, depending on the individual laboratory standards.

When the aPTT level is significantly higher than this range, such as an 80-second result, it indicates an increased risk for bleeding due to excessive anticoagulation. In this scenario, reducing the rate of the heparin infusion is the appropriate response to manage the risk of bleeding while still ensuring sufficient anticoagulation.

This understanding of aPTT levels helps prevent complications associated with heparin therapy, where the goal is to maintain an effective yet safe level of anticoagulation.