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FVC (Forced Vital Capacity)
Totoal volume that can be exhaled during maximum forced expiration
- Low FVC:
- With decreased FEV1: Restrictive ventilatory impairment
- [absolute FEV1/FVC >.07
- FVC: Normal/decreased
- and FEV1 absolutely decreased: Obstructive ventilatory impairment
- [absolute fev1/fvc<.07]
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Methacoline Challenge testing
Asthma
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Cardiopulmonary stress testing
- Indications:
- Evaluate dyspnea, preoperative risk when removal of a lung segment or lung repair is contemplated, evaluate a disability, evaluate exercise induced asthma, evaluate therapy
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Arterial blood gas
Provides status of acid base, oxygenation, and ventilation
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Troponin Levels
- Criterion standard in defining and diagnosing MI
- Positive troponin levels are considered virtually diagnostic of myocardial infarction
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Creatine Kinase level
Previous standard criterion for MI
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Myoglobin levels
myoglobin urine levels rise in MI
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CBC
- rule out anemia before giving anti-thrombolytic prophylaxes
- leukocytes may be elevated in MI
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Chem panel
- In setting of MI, potassium and magnesium levels
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C reactive protein
if acute coronary syndrome is suspected
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