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Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

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...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
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Related Experiment Video

Updated: May 10, 2026

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow
09:41

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow

Published on: March 5, 2020

Elevated APTT? How best to follow up.

Habib Ur Rehman1

  • 1Department of Medicine, Regina General Hospital, Saskatchewan, Canada. habib31@sasktel.net

The Journal of Family Practice
|July 6, 2013
PubMed
Summary
This summary is machine-generated.

This guide helps refine approaches to abnormal activated partial thromboplastin time (aPTT). Learn step-by-step methods for managing this common laboratory finding.

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Reproducibility and Harmonization in Research Using Biological Standards: The Example of Platelet Agonist Collagen-Related Peptide

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Related Experiment Videos

Last Updated: May 10, 2026

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow
09:41

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow

Published on: March 5, 2020

In Vitro Thrombosis Test for Ventricular Assist Devices
09:15

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Reproducibility and Harmonization in Research Using Biological Standards: The Example of Platelet Agonist Collagen-Related Peptide
04:50

Reproducibility and Harmonization in Research Using Biological Standards: The Example of Platelet Agonist Collagen-Related Peptide

Published on: August 4, 2023

Area of Science:

  • Clinical Chemistry
  • Hematology

Background:

  • Activated partial thromboplastin time (aPTT) is a critical laboratory test.
  • Abnormal aPTT results necessitate careful clinical evaluation.

Purpose of the Study:

  • To provide a systematic approach for interpreting and managing abnormal aPTT results.
  • To guide clinicians in diagnosing the underlying causes of prolonged aPTT.

Main Methods:

  • Review of diagnostic algorithms for abnormal aPTT.
  • Step-by-step guidance on laboratory testing and clinical assessment.
  • Integration of patient history and physical examination findings.

Main Results:

  • Identification of common causes for isolated aPTT prolongation.
  • Differentiation between intrinsic and extrinsic pathway abnormalities.
  • Strategies for confirming heparin or direct thrombin inhibitor presence.

Conclusions:

  • A structured approach improves the efficiency and accuracy of aPTT abnormality management.
  • Timely diagnosis and appropriate treatment are crucial for patient outcomes.
  • This guide serves as a valuable resource for healthcare professionals encountering abnormal aPTT.