A 4-year-old scheduled for a tonsillectomy and adenoidectomy has a prolonged active partial thromboplastin time (aPTT) on preoperative testing. The PNP should suggest that they:

A 4-year-old scheduled for a tonsillectomy and adenoidectomy has a prolonged active partial thromboplastin time (aPTT) on preoperative testing. The PNP should suggest that they:

• A. Continue with the surgery, and monitor the child closely for bleeding complications
• B. Cancel the surgery, and recheck the aPTT in 1 week
• C. Cancel the surgery, and refer the child to a hematologist
• D. Obtain a family history, and determine whether there are other relatives with a bleeding disorder

Answer: (C)

A prolonged aPTT points to a potential bleeding disorder involving the intrinsic pathway (such as deficiencies of factors VIII, IX, or XI, or an inhibitor). In a child scheduled for tonsillectomy and adenoidectomy, this raises a real risk of significant intraoperative or postoperative bleeding, so the safest course is to cancel the elective procedure and arrange a hematology evaluation before any future surgery. A hematologist will perform a full hemostasis workup to identify the cause, which may include mixing studies to distinguish a deficiency from an inhibitor, specific factor level testing, and assessments for von Willebrand disease or platelet function as needed. They can then plan perioperative management if the surgery is to proceed (such as factor replacement orDDAVP) or advise postponement until the issue is resolved. Rechecking the aPTT in a week doesn’t address the underlying problem and proceeding with surgery despite an abnormal result would put the child at risk. While taking a family history can inform suspicion, it cannot replace formal hematology evaluation and targeted testing.

A prolonged aPTT points to a potential bleeding disorder involving the intrinsic pathway (such as deficiencies of factors VIII, IX, or XI, or an inhibitor). In a child scheduled for tonsillectomy and adenoidectomy, this raises a real risk of significant intraoperative or postoperative bleeding, so the safest course is to cancel the elective procedure and arrange a hematology evaluation before any future surgery.

A hematologist will perform a full hemostasis workup to identify the cause, which may include mixing studies to distinguish a deficiency from an inhibitor, specific factor level testing, and assessments for von Willebrand disease or platelet function as needed. They can then plan perioperative management if the surgery is to proceed (such as factor replacement orDDAVP) or advise postponement until the issue is resolved. Rechecking the aPTT in a week doesn’t address the underlying problem and proceeding with surgery despite an abnormal result would put the child at risk. While taking a family history can inform suspicion, it cannot replace formal hematology evaluation and targeted testing.