CPT: 82947
Test #: 001032


Blood Sugar

Expected Turnaround Time

24 Hours

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Specimen Requirements


Serum, Plasma


SST (Serum), Red Top (Separate Serum), Lithium Heparin (Plasma), EDTA (Plasma)

Storage Instructions

Room Temp., Refrigerated (2-8 C)

Stability Requirements

Room temp. 72hrs., Refrigerated 7 days

Patient Preparation

Blood should be drawn in the morning after an overnight fast. Per the American Diabetes Association (ADA), fasting is defined as no caloric intake for at least eight hours.<sup1</sup>

Causes for Rejection

Samples unspun or improperly spun (excluding oxalate/NaF); gross hemolysis; gross bacterial contamination; improper labeling

Test Details


Diagnose diabetes mellitus; evaluate disorders of carbohydrate metabolism including alcoholism; evaluate acidosis and ketoacidosis; evaluate dehydration, coma, hypoglycemia of insulinoma and neuroglycopenia

Additional Information

A blood glucose test is a blood test that mainly screens for diabetes by measuring the level of glucose (sugar) in the blood. 

There are two main types of blood glucose tests: 

  • Capillary blood glucose test: A healthcare professional collects a drop of blood — usually from a fingertip prick. These tests involve a test strip and glucose meter (glucometer), which show the blood sugar level within seconds. 
  • Venous (plasma) blood glucose test: A phlebotomist collects a sample of blood from a vein (venipuncture). These glucose tests are usually part of a blood panel, such as a basic metabolic panel. The provider will send the samples to a lab. There, a medical laboratory scientist will prepare the samples and perform the test on machines known as analyzers. 

Venous blood glucose tests are generally more accurate than capillary blood glucose tests. 

Healthcare providers often order fasting blood glucose tests to screen for diabetes. Since consuming food affects blood sugar, fasting blood glucose tests show a more accurate picture of the body’s baseline blood sugar. 

People with Type 1 diabetes especially need to monitor their blood sugar multiple times a day to effectively manage the condition. Glucose (sugar) mainly comes from carbohydrates in the food and drinks that are consumed. It’s the body’s main source of energy. The blood carries glucose to all the body’s cells for energy. 

Several bodily processes help keep the blood’s glucose in a healthy range. Insulin, a hormone the pancreas makes, is the most significant contributor to maintaining healthy blood sugar 

If the body has elevated blood glucose levels (hyperglycemia), it usually indicates diabetes. Diabetes develops when the pancreas doesn’t make any insulin or enough insulin, or the body isn’t responding to the effects of insulin properly. 


  1. Mathew P, Thoppil D. StatPearls [Internet]. StatPearls Publishing; Treasure Island (FL): Dec 26, 2022. Hypoglycemia. [PubMed] 
  2. Patricia JJ, Dhamoon AS. StatPearls [Internet]. StatPearls Publishing; Treasure Island (FL): Sep 12, 2022. Physiology, Digestion. [PubMed] 


Order Code
Order Code Name
Order Loinc
Result Code
Result Code Name
Result LOINC

Statement on Medical Necessity
All ordered tests should be medically necessary for the diagnosis or detection of disease, illness, impairment, symptom, syndrome, or disorder and the results should be used in the medical management and treatment decisions for the patient. Solaris requires ICD-10 codes with each order for lab testing and both the tests ordered and the diagnosis should be documented in the provider’s medical record for the patient. The United States Department of Health and Human Services, Office of Inspector General, takes the position that a provider who orders medically unnecessary tests may be subject to civil penalties.

Panels and Profiles
Solaris offers Providers the convenience of ordering test combinations in a group at times with the flexibility to choose appropriate test(s) for individual patients. Providers should only order those tests that he or she believes are medically necessary for each patient, and a lesser inclusive profile or individual tests should be ordered if not all tests in the test combination/profile are medically necessary. All tests offered in a test combination/profile may be ordered separately as individual tests. Solaris encourages clients to contact their Solaris representative if the testing configurations shown do not meet individual needs for any reason, or if some other combination of procedures is needed.

CPT Codes
CPT Codes listed are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are the responsibility of the billing party and are listed here for informational purposes. Correct coding may vary from one carrier to another. Solaris may bill specific carriers using codes other than what is shown.


For questions or inquiries related to testing please reach out to or contact us by phone at (844) 550-0308.