Related Experiment Video
Updated: May 6, 2026
07:58
An Automated Differential Nuclear Staining Assay for Accurate Determination of Mitocan Cytotoxicity
Published on: May 12, 2020
6.4K
Main considerable factors for correct laboratory test interpretation under DOA treatment.
Helen Mani1, Edelgard Lindhoff-Last
1Department of Internal Medicine, Division of Vascular Medicine and Hemostaseology, Johann Wolfgang Goethe-University Hospital, Frankfurt/Main, Germany. Helen.Mani@kgu.de.
Thrombosis Journal
|November 2, 2013
Summary
Clinicians must understand how direct oral anticoagulants (DOA) affect coagulation tests. Recognizing these variable effects is crucial for accurate laboratory test interpretation and patient management.
Area of Science:
- Clinical Chemistry
- Pharmacology
- Hematology
Background:
- Direct oral anticoagulants (DOA) are increasingly prescribed for various indications.
- New DOA agents with diverse mechanisms of action are continuously introduced.
- Understanding their impact on laboratory diagnostics is essential.
Purpose of the Study:
- To highlight the interference of new direct oral anticoagulants (DOA) on coagulation assays.
- To inform clinicians about the variable effects of different DOA on laboratory tests.
- To provide guidance for correct laboratory test interpretation in patients on DOA therapy.
Main Methods:
- Review of current literature on DOA and their effects on coagulation assays.
- Analysis of the pharmacokinetic and pharmacodynamic profiles of major DOA.
- Identification of key factors influencing DOA interference in laboratory testing.
Main Results:
- DOA exhibit heterogeneous effects on coagulation assays due to their varied targets and properties.
- Specific coagulation tests may show altered results depending on the DOA used.
- Awareness of these interferences is critical for appropriate clinical decision-making.
Conclusions:
- Clinicians must be aware of the potential for DOA to interfere with coagulation assays.
- Misinterpretation of coagulation tests in patients on DOA can lead to mismanagement.
- Recognizing the variable effects of different DOA is of current importance for accurate patient care.
Related Concept Videos
01:26Therapeutic Drug Monitoring: Drug Analysis Methods
349
Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
349
01:29Therapeutic Drug Monitoring: Affecting Factors
438
Therapeutic Drug Monitoring (TDM) is the clinical practice of measuring specific drug levels in a patient's blood or body tissues to manage and optimize therapy. TDM is crucial for drugs with narrow therapeutic windows, like warfarin and phenytoin, where incorrect doses can lead to treatment failure or severe side effects. This monitoring ensures the dosage administered is within a safe and effective range. The factors affecting therapeutic drug monitoring include:Patient-Specific Factors:a.
438
01:22Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
275
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...
275
01:16Therapeutic Drug Monitoring: Overview and Classification
648
Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood at designated intervals to ensure the drug concentration stays within a therapeutic range. This monitoring is crucial for optimizing individual dosage regimens, enhancing therapeutic efficacy, and minimizing drug-related toxicity. TDM is vital for drugs with narrow therapeutic windows, significant variability in pharmacokinetics, and a clear correlation between plasma levels and...
648
01:30Serum Laboratory Studies, Stool Test, Breath Test
1.2K
Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
1.2K
01:26Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
386
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
386