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Important Values
Laboratory Test Values, Cardiac Values, Cardiac terminology
| Question | Answer |
|---|---|
| Prothrombin time (PT) | 11 - 15 sec, If clotting time is increased by 2.5 times or more than normal, therapy is contraindicated. |
| INR | 0.9 - 1.1 (ratio); |
| WBC | Male and Female = 4,300 - 10,800 cells/mm3. If > 5000, light exercise only. If < 5000, with fever, exercise is contraindicated. If <1000, use mark, standard precautions. |
| RBC | Males = 4.6 - 6.4 x 10^6/uL Females = 4.3 - 5.9 x 10^6/uL |
| ESR | Males up to 15mm/hr. Females up to 20 mm/hr. Increased in infection and inflammation |
| Hematocrit | Males 45-52% Females 37-48% |
| Hemoglobin | Males 13-18 g/dL Females 12-16 g/dL |
| Platelet count | 150,000 - 450,000 cells/mm3. If <20,000 = AROM and ADLs only. If 20,000 - 30,000, light exercise only. If 30,000 - 50,000, use moderate exercise. |
| Stroke Volume | 55-100 mL/beat. Amount of blood ejectd with each myocardial contraction. |
| Cardiac Output | CO = SV x HR; Normal is 4-5 L/mon; Amount of blood from L or R ventricle per minute. |
| Left Ventricular End-Diastolic Pressure (LVEDP) | Normal range 5-12 mmHg; Pressure in L ventricle during diastole. |
| Ejection Fraction | EF = SV/LVEDV; Normal average 60-70%; Percentage of blood emptied from ventricle during systole. Clinically useful measure of LV function. The lower the EF, the more impaired the LV. |
| Rate Pressure Product | HR x SBP |
| PaO2 | Adults: 80-100 mmHg Infants: 75-80 mmHg |
| PaCO2 | Adults: 35-45 mmHg Infants: 34-54 mmHg |
| Tidal Volume | Adutls: 500 mL Infants: 20 mL Volume of gas inhaled or exhaled during normal resting breath. |
| Residual Volume | Volume of gas that remains in the lungs after ERV |
| Inspiratory Capacity | IRV + TV; Amount of air that can be inhaled from REEP |
| Vital Capacity | IRV + TV + ERV; Amount of air that is under volitional control; conventionally measured as a forced expiratory vital capacity (FVC) |
| Functional Residual Capacity | ERV + RV; Amount of air that resides in the lungs after a normal resting tidal exhalation. |
| Total Lung Capacity | IRV + TV + ERV + RV; Total amount of air that is contained within the thorax during maximum inspiratory effort. |