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Questions and Answers
What laboratory test is used to monitor clients on heparin therapy?
What laboratory test is used to monitor clients on heparin therapy?
Which enzyme increases within 3-4 hours after a myocardial infarction (MI)?
Which enzyme increases within 3-4 hours after a myocardial infarction (MI)?
What is the desirable level of LDL cholesterol according to the text?
What is the desirable level of LDL cholesterol according to the text?
Which laboratory test reflects renal function and perfusion?
Which laboratory test reflects renal function and perfusion?
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What indicates pressures in the right atrium according to the text?
What indicates pressures in the right atrium according to the text?
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Study Notes
Cardiovascular Diagnostic Procedures
- Laboratory tests include serum electrolytes, erythrocyte sedimentation rate, and C-reactive protein
Coagulation Tests
- PPT (partial thromboplastin time) and anti-XA are used to monitor clients on heparin therapy
- PT (prothrombin time) and INR (international normalized ratio) are used to monitor clients on warfarin therapy
Renal Function and Perfusion
- BUN (blood urea nitrogen) and creatinine reflect renal function and perfusion
Lipid Profile
- Total serum cholesterol: a level above 200 indicates a risk for cardiovascular disease
- LDL (low-density lipoprotein): less than 100mg/di is desirable
- HDL (high-density lipoprotein): greater than 40mg/di for men and 50mg/di for women
- Triglycerides: less than 150mg/di
Heart Failure
- B-type Natriuretic peptide (BNP): an increase above 50pg/ml indicates worsening heart failure
Enzymes
- CK-MB (creatine kinase-MB): increases within 4-6 hours following an MI and remains elevated up to 72 hours (normal 30-170 units)
- Troponin (cTnI and cTnT): a protein specific to heart muscle, increases 3-4 hours after MI and remains elevated for up to 2 weeks (normal is less than 0.2ng/di)
- Myoglobin: peaks within 3-15 hours following an MI
Central Venous Pressure
- Indicates pressures in the right atrium, with trends being more important than the values
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Description
This quiz covers a variety of laboratory tests used for cardiovascular diagnostic procedures, including serum electrolytes, erythrocyte sedimentation rate, C-reactive protein, coagulation tests, and lipid profiles. It also includes monitoring tests for clients on heparin and warfarin therapy, as well as tests reflecting renal function and cardiovascular disease risk.
