Table of Contents
- 1 What is the significance of determining specific gravity of blood?
- 2 What is the specific gravity of blood?
- 3 What is the significance of having low specific gravity of blood?
- 4 What are the normal values of a urinalysis?
- 5 What causes an increase in urine specific gravity?
- 6 Is there an increase in specific gravity with increasing hematocrit?
What is the significance of determining specific gravity of blood?
In respect of medical research, the determination of the specific gravity of blood, plasma or sera is frequently necessary for analytical and clinical purposes, particularly where it is desired to determine (estimate) the protein content of such blood, plasma or sera.
What is the specific gravity of blood?
The specific gravity (relative density) of human whole blood and plasma from 25 healthy volunteers was determined gravimetrically. For whole blood it was found to be 1.0621 (95% confidence interval: 1.0652-1.0590) at 4 °C and 1.0506 (95% confidence interval: 1.0537-1.0475) at 37 °C.
What is the significance of having low specific gravity of blood?
Abnormal specific gravity results could indicate: excess substances in the blood. kidney disease (high or low specific gravity can indicate an inability of the kidney tubules to function correctly) infection, such as a urinary tract infection.
What leads to increase in specific gravity of RBC?
Dry potassium oxalate and sodium citrate caused marked changes, increasing the specific gravity of blood and of plasma, and shrinking the red cells. Dry heparin caused significant increases in the specific gravity of blood and of plasma.
What is the significance of specific gravity measurement?
4.1 Specific gravity is an important property of fluids being related to density and viscosity. Knowing the specific gravity will allow determination of a fluid’s characteristics compared to a standard, usually water, at a specified temperature.
What are the normal values of a urinalysis?
Normal values are as follows:
- Color – Yellow (light/pale to dark/deep amber)
- Clarity/turbidity – Clear or cloudy.
- pH – 4.5-8.
- Specific gravity – 1.005-1.025.
- Glucose – ≤130 mg/d.
- Ketones – None.
- Nitrites – Negative.
- Leukocyte esterase – Negative.
What causes an increase in urine specific gravity?
Increased urine specific gravity may be due to conditions such as: Decreased urine specific gravity may be due to: There are no risks with this test. Krishnan A, Levin A. Laboratory assessment of kidney disease: glomerular filtration rate, urinalysis, and proteinuria.
Is there an increase in specific gravity with increasing hematocrit?
There was a small increase in whole blood specific gravity with increasing hematocrit, but it was not statistically significant over the 40-56 hematocrit range studied. This content is only available as a PDF.
What is the specific gravity of whole blood?
The specific gravity (relative density) of human whole blood and plasma from 25 healthy volunteers was determined gravimetrically. For whole blood it was found to be 1.0621 (95% confidence interval: 1.0652-1.0590) at 4 °C and 1.0506 (95% confidence interval: 1.0537-1.0475) at 37 °C.
What happens when you get a specific gravity test?
In some cases, the urine specific gravity test will show that you’re dehydrated or overhydrated. If you’re extremely dehydrated and having trouble getting enough fluids, you may be given intravenous fluids to help hydrate you faster. Mild dehydration can be resolved by consistently drinking more water.