Cardiovascular and Pulmonary: Laboratory Tests and Values Flashcards
Arterial Blood Gases: SpO2: Normal Range
- 98 to 100%
Arterial Blood Gases: Spo2: Clinical Significance
- Below 88-90 typically requires supplemental O2
Arterial Blood Gases: PaO2: Normal Range
- 90 to 100 mmHg
Arterial Blood Gases: PaO2: Clinical Significance
- Increase in PaO2 in hyper-oxygenation
- Decrease in PaO2 in cardiac decompensation
- Significant measure in COPD and some neurologic disorders
Arterial Blood Gases: PaCO2: Normal Range
- 35-45 mmHg
Arterial Blood Gases: PaCo2: Clinical Significance : Increased PaCO2
- Increased PaCO2 in:
- COPD
- Hypoventilation
Arterial Blood Gases: PaCo2: Clinical Significance : Decreased PaCO2
- Decreased PaCO2 in:
- Hyperventilation
- Pregnancy
- Pulmonary embolism
Arterial Blood Gases: pH of Whole Blood: Normal Range
- 7.35 to 7.45
Arterial Blood Gases: pH of Whole Blood: Clinical Significance
- Less than 7.35=Acidic
- Greater than 7.45=Alkalytic
Arterial Blood Gases: pH of Whole Blood: Clinical Significance: Increased respiratory alkalosis
Caused by:
- Hyperventilation
- Sepsis
- Liver disease
- Fever
Arterial Blood Gases: pH of Whole Blood: Clinical Significance: Increased metabolic alkalosis
Caused by:
- Vomiting
- Potassium depletion
- Diuretics
- Volume depletion
Arterial Blood Gases: pH of Whole Blood: Clinical Significance: Decreased respiratory alkalosis
Caused by
- Seen in Hypoventilation
- Seen in COPD
- Slowed respiratory rate
- Myasthenia
Arterial Blood Gases: pH of Whole Blood: Clinical Significance: Decreased metabolic acidosis
- Deficit in bicarbonate
- Increased acids
Caused by: - Diabetes
- Alcohol
- Starvation
- Renal failure
- Increased acid intake
- Loss of alkaline body fluids
Hemostasis: Clotting/Bleeding Times: Prothrombin Time: Normal Range
- 11-15 sec
Hemostasis: Clotting/Bleeding Times: Prothrombin Time: Clinical Significance
Seen in
- Increased X factor deficiency
- Hemorrhagic Disease
- Cirrhosis
- Hepatitis drugs
Hemostasis: Clotting/Bleeding Times: Partial Thromboplastin Time: Normal Range
- 25- 40 sec
Hemostasis: Clotting/Bleeding Times: Partial Thromboplastin Time: Clinical Significance
Seen in
- Increased factor VIII and IX and X deficiency
Hemostasis: Clotting/Bleeding Times: International Normalized Ratio: Normal Ranges
- 0.9-1.1
Hemostasis: Clotting/Bleeding Times: International Normalized Ratio: Clinical Significance: Target INR’s of 2-3
Patients with
- DVT’s
- Pulmonary Embolism
- Mechanical valves
- A-fib
- Anticoagulant therapy