Your doctor may need to calculate your blood volume for many reasons, such as to determine what volume of anesthesia you would need during surgery or to make sure that when you donate blood, you are not donating more than is safe for youThere are several different ways to calculate your blood volume, and they may give slightly different answers, but they should not be very different.
Step 1: Use Nadler's equation.
Your total blood volume is calculated using this method.To perform the calculation, you need your height and weight.The formula is : (0.006012 x Height3displaystyle ) + (14.6 x Weight)+604.If you have a height in centimeters and a weight in kilograms, you will need to convert them to inches and pounds.The inch is 0.29 inches.The weight of 1 kilogram is 2.2 pounds.The formula has a height function.You can cube your height in inches.The weight function is calculated.Put your weight in pounds.The weight function should be added to the height function.Add 604.
Step 2: Estimate your blood volume.
The method uses the average number of liters of blood per kilogram of a man's body weight.The reference book method is also used in this method.The weight you should have is kilograms.One pound is 0.45 kilograms.The average for men is 75 liters of blood per kilogram.This will give you an estimate of your blood volume.
Step 3: If needed, use Gilcher's Rule of Five.
Some tissue has more blood in it than others.The accuracy of the calculations will be affected if a person is obese or thin.Gilcher's Rule of Fives takes into account the amount of blood per kilogram of body weight.If you know your weight in pounds, you can convert it to kilograms.Muscular men have 75 mL of blood per kilogram of body weight.Normal men have 70.Thin men have 65.Obese men have 60.
Step 4: Applying the Nadler equation.
The result is your total blood volume.If you want to accurately do the calculation, you need to put your height in inches and your weight in pounds into the formula.You can convert both your height and weight.The inch is 0.29 inches.The weight of 1 kilogram is 2.2 pounds.You can skip this step if you already have your information in inches and kilograms.The height function is calculated.You can cube your height in inches.The weight function is calculated.Take your weight and divide it by 15.The weight function should be added to the height function.Add.
Step 5: Estimate the total amount of blood you have.
The method is based on the average value of blood per kilogram of body weight for women.The weight should be expressed in kilograms.One pound is 0.45 kilograms.The average for women is 65 liters of blood per kilogram.This will give you an estimate of your blood volume.
Step 6: Gilcher's Rule of Five can be used to make corrections.
The amount of blood in fat and muscle is different.Your fitness level can cause you to deviate from the averages.The estimated amount of blood per kilogram of body weight is correct by Gilcher's Rule of Fives.If you know your weight in pounds, you can convert it to kilograms.Muscular women have 70 mL of blood per kilogram of body weight.Normal women have 65.Thin women have 60.Obese women have 55.
Step 7: Put the child in a container.
You can use a scale to get the value.It is important to have an up-to-date weight for children.If your scale tells you the weight in pounds, you need to convert it to kilograms.The answer won't be accurate if that's not the case.A pound is 0.45 kilograms.
Step 8: Determine the average blood volume per person.
A newborn that is 15 to 30 minutes old will have an average blood volume of 76.5 liters of blood per kilogram.A newborn that is 24 hours old has an average of 83.3 liters per kilogram.An infant has 87 liters per kilogram.A baby has 86 liters per kilogram.A child has 80 liters per kilogram.A ten year old has a lot of water.A fifteen year old has a lot of water.Teens will have the same blood volume as adults as they get older.
Step 9: The volume of blood should be calculated.
Divide your child's weight by the average value for his or her age group.The result is your child's estimated blood volume.You can use a different method of calculation.The accuracy of the calculations may be different if the population is similar to your child's body side and growth pattern.