What is a laboratory reference?
What is a laboratory reference?
“Reference laboratory” is defined as the laboratory that receives a specimen from another laboratory and that performs one or more tests on such specimen.
What are normal ranges for blood tests?
Results
| Red blood cell count | Male: 4.35-5.65 trillion cells/L* (4.35-5.65 million cells/mcL**) Female: 3.92-5.13 trillion cells/L (3.92-5.13 million cells/mcL) |
|---|---|
| Hemoglobin | Male: 13.2-16.6 grams/dL*** (132-166 grams/L) Female: 11.6-15 grams/dL (116-150 grams/L) |
| Hematocrit | Male: 38.3-48.6 percent Female: 35.5-44.9 percent |
Why are lab reference ranges different?
Why Labs Have Different Reference Ranges Because there is no universal reference range for most lab tests, ranges will vary from lab to lab. This means that it is possible to get a normal result from one lab and an abnormal result for the same test from another lab, and vice versa.
How do you write a reference range?
When assuming a normal distribution, the reference range is obtained by measuring the values in a reference group and taking two standard deviations either side of the mean. This encompasses ~95% of the total population.
When do you use modifier 90?
Modifier 90 is used when laboratory procedures are performed by a party other than the treating or reporting physician and the laboratory bills the physician for the service.
Can 2 different labs get different HCG results?
Yes, the result of blood tests done in the same method and conditions from different labs can be very similar but not the same. Results of blood tests are often given in the numbers or statistics or a simple yes or no.
What does value mean on a lab test?
When you are given a medical test that yields relative results, usually in the form of a number (value), you will want to know what those results mean and how they compare to previous results. These values can ascertain whether a treatment is working or a disease or condition is progressing.
What is a reference value?
A reference value is the known and correct measurement for each part. The reference value is used for comparison during measurement system analysis. Reference values are an average of repeated measurements from more accurate measuring equipment. Reference values are endorsed by a professional group.
How do you calculate reference value?
The common formula to calculate the reference range is: mean±1.96x SD. The problem is that the SD in my control is to high and the estimated reference range is too large, can I use the confidence interval of the mean as a reference range instead of the common formula? Thank you.
What is the normal range for lab values?
The normal range is 2.7 to 17.0 nanograms per milliliter (ng/mL) or 6.12 to 38.52 nanomoles per liter (nmol/L). Normal value ranges may vary slightly among different labs. Talk to your provider about the meaning of your test results.
What are normal laboratory values?
Normal Laboratory Values. Normal: 120/70 to 120/80 millimeters of mercury (mmHg). The top number is systolic pressure, when the heart is pumping. Bottom number is diastolic pressure then the heart is at rest. Blood pressure can be too low (hypotension) or too high (hypertension).
What is normal INR lab values?
In healthy people an INR of 1.1 or below is considered normal. An INR range of 2.0 to 3.0 is generally an effective therapeutic range for people taking warfarin for disorders such as atrial fibrillation or a blood clot in the leg or lung. In certain situations, such as having a mechanical heart valve, you might need a slightly higher INR.
What are normal lab results?
Normal PT Values: 10-12 seconds (this can vary slightly from lab to lab) Normal PTT Values: 30 to 45 seconds (this can value slightly from lab to lab) Normal INR Values: 1 to 2. These ranges differ from the values desired when a person is taking a blood thinner.
