Normal values for physiologically important parameters Flashcards
What are the intracellular and extracellular concentrations (and ranges) for sodium ions?
- Extracellular: 140mM (range: 135-145mM)
- Intracellular: 5-15mM
What are the intracellular and extracellular concentrations (and ranges) for potassium ions?
- Extracellular: 4mM (3.5-5mM)
- Intracellular: 140mM
What are the intracellular and extracellular concentrations (and ranges) for calcium ions?
- Extracellular: 2.4mM (2.12-2.62mM) -> nb that only half of extracellular calcium is present as free calcium/able to contribute to the concentration.
- Intracellular: 0.1uM
What are the intracellular and extracellular concentrations (and ranges) for chloride ions?
- Extracellular: 100mM (95-105mM)
- Intracellular: Less than extracellular, but can vary widely from tissue to tissue.
What are the intracellular and extracellular concentrations (and ranges) for bicarbonate ions?
- Extracellular: 25mM (22-29mM)
- Intracellular: 10-20mM (varies according to intracellular pH)
What are the intracellular and extracellular concentrations (and ranges) for hydrogen ions (protons)?
- Extracellular: 40nM (pH = 7.4)
- Intracellular: 50-100nM (pH = 7.0-7.3)
What is the range for plasma glucose (fasting)?
4-6mM
What is the value for plasma osmolarity?
290 mOsm
What is the value for arterial partial pressure of O2?
What is the range?
90mmHg (12kPa)
80-100mmHg (11-13kPa)
What is the value for arterial partial pressure of CO2?
What is the range?
40mmHg (5.3kPa)
35-45mmHg (4-6kPa)
What is the value for arterial blood pH?
pH 7.4 (range: 7.35-7.45)
What is the value for glomerular filtration rate (GFR)?
125ml/min
What is the range of values for urine osmolarity?
50-1200mOsm
What are the values for systemic arterial blood pressure?
120/80 (systolic/diastolic)
What are the values for pulmonary arterial blood pressure?
20/10mmHg (systolic/diastolic)
What is the value for resting cardiac output?
5L/min
What is the value for basal oxygen consumption?
250ml/min
What is the value for normal ventilation at rest?
6 L/min
What is the value for alveolar ventilation at rest?
4L/min
What is the range for normal resting heart rate?
60-100bpm
For the average 70kg man, what is the volume of the total body fluid compartment?
42L
For the average 70kg man, what is the volume of the extracellular body fluid compartment as:
- Total?
- Plasma?
- Interstitial fluid?
- Transcellular fluid?
- 14L (roughly 1/3 of total)
- 3L
- 10L
- 1L
For the average 70kg man, what is the volume of the intracellular body fluid compartment?
28L (roughly 2/3 of total)
What is the normal value for a haematocrit?
45%
What is the normal cell count of RBCs/erythrocytes?
5x10^12 cells/L
What is the normal cell count of WBCs/leucocytes?
~ 7x10^9 cells/L
What is the usual differential count of neutrophils compared to the entire complement of WBCs?
40-70%
What is the usual differential count of lymphocytes compared to the entire complement of WBCs?
20-40%
What is the usual differential count of monocytes compared to the entire complement of WBCs?
~6%
What is the usual differential count of eosinophils compared to the entire complement of WBCs?
~3%
What is the usual differential count of basophils compared to the entire complement of WBCs?
<1%
What is the normal cell count of platelets?
1.5M-4.5M cells/L
What is the normal value of CO2 production at rest?
200ml/min [CHECK]