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Pre-Procedural Guidelines for Assessing Blood Pressure01:10

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Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
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During the postoperative period, it is crucial to focus on maintaining circulation, identifying and managing potential complications, and planning for discharge.Nursing AssessmentVital signs monitoring: Regularly monitor vital signs, including blood pressure, heart rate, respiratory rate, and temperature, to detect early signs of complications such as bleeding and infection.Circulation assessment: Monitor pulses, perform Doppler assessments, and check capillary refill, color, temperature, and...
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Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
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Related Experiment Video

Updated: May 5, 2026

Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
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Assessing preoperative bleeding risk using international normalized ratio and activated partial thromboplastin time:

Hassan Rahhal1, Rebecca Sampat2, Brandon Tse3

  • 1Departamento de Clínica Médica, Instituto Central, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Faculdade de Medicina, Universidade de São Caetano do Sul, São Paulo, Brazil.

Journal of Thrombosis and Haemostasis : JTH
|March 6, 2026
PubMed
Summary

Routine preoperative coagulation tests like prothrombin time (PT) and activated partial thromboplastin time (APTT) show weak links to bleeding risk in most surgeries. PT may predict bleeding in liver disease patients undergoing major abdominal surgery.

Keywords:
blood coagulation testspartial thromboplastin timepostoperative hemorrhagepreoperative careprothrombin time

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Area of Science:

  • Clinical Pathology
  • Surgical Risk Assessment
  • Evidence-Based Medicine

Background:

  • Prothrombin time (PT) and activated partial thromboplastin time (APTT) are standard preoperative tests for bleeding risk.
  • Guidelines on routine coagulation testing show variability, with a trend toward risk-stratified approaches.
  • The general utility of these tests as a screening tool is debated.

Conclusions:

  • Coagulation test results (PT, APTT) are not consistently linked to bleeding risk in minor and most major elective surgeries.
  • Preoperative PT may be associated with bleeding outcomes in patients with advanced liver disease undergoing major abdominal surgery.
  • Routine coagulation screening may not be beneficial for most surgical patients.