ABOUT THIS EPISODE
Normal 30-40 seconds
Indications
- Identifying congenital deficiencies in clotting
- Monitoring heparin therapeutic levels (PT for warfarin)
- Monitoring effects of:
- Liver Disease
- Protein Deficiency
- Fat malabsorption on clotting
Description Activated Partial Thromboplastin Time (aPTT) is a test that measures the amount of time it takes for a fibrin clot to form after reagents have been added to the specimen. It is useful in diagnosing clotting disorders. In conjunction with PT it can be used to differentiate the specific factor that may be missing.
What would cause increased (Prolonged) levels?
- Vitamin K Deficiency
- Disseminated Intravascular Coagulation (DIC)
- Hemodialysis Patients
- Afibrinogenemia
- Polycythemia
- Liver disease
- Von Willebrand Disease.
What would cause decreased levels?
- N/A
English
United States
IN THIS EPISODE
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Search past episodes of Lab Values Podcast by NURSING.com (Nursing Podcast, normal lab values for nurses for NCLEX®) by NURSING.com (NRSNG).
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Normal 5.6-7.5 % of total Hgb
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Description
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Normal 2 - 20 ng/mL
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Monitor effects of long-term Total Parenteral Nutrition (TPN)
Identify Folate Deficiency
Description Folic acid is an essential water soluble B vitamin. It is stored in the liver and is an important part of Red Blood Cell (RBC) …
Normal 0.8 - 1.2 Therapeutic Levels of Warfarin 2.0 – 3.5
Indications
Evaluate therapeutic doses of Warfarin
Identify patients at higher risk for bleeding
Identify cause of:
Bleeding
Deficiencies
Description International normalized ratio(INR) takes results from a prothrombin time t…
Normal 0.3 -2.6 mmol/L
Indications
Determine cause of acidosis
Evaluate tissue oxygenation
Description Lactate (Lactic Acid) is a byproduct of anaerobic metabolism. Normally, the tissues use aerobic metabolism to breakdown glucose for energy and the byproduct is CO2 and H2O which we excret…
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