Collection of urine to evaluate for blood, infection, or other urinary tract problems. The normal range is 2.17.1 mmol/L or 620 mg/dL. Urine chemistry tests to measure the output of the kidneys. If any one of these tests is outside the normal range of values, the test should be reported as abnormal. A liver panel may contain any of the following tests. Liver Function TestsĪ series of blood chemistry tests measuring enzymes excreted by the liver during abnormal functioning due to metastases, obstruction or other conditions. Used primarily to rule out a variety of benign conditions. Normal values: 1%-13% absorbed by thyroid after 2 hours 2-25% absorbed after 6 hours 15-45% absorbed after 24 hours. Measures ability of thyroid gland to accumulate, concentrate and retain iodine usually done at same time as a thyroid scan. Histochemistry of the bone marrow is a laboratory study performed in addition to the standard histologic analysis of the specimen. Pathologic examination of bone marrow biopsy specimen using special staining techniques to determine subclassification of the leukemia. Identifies presence of blood in stool reported as positive or negative Also called: Guaiac, Hematest, Occultest, Hemoccult, Benzidine, or Orthotoluidine test. The blood chemistry panel consists of 12 to 20 tests: Test Mean Corpuscular Hemoglobin Concentration (MCHC)īlood chemistries, SMA-12, SMAC-6, ACA, MSSP, and many other names, usually based on the piece of equipment in use. If one or more of the starred items is outside of the normal values, the CBC is considered abnormal. Reticulocyte count and reticulocyte hemoglobin content. The table which follows indicates the portions of the CBC relevant to malignancies. b From The Ottawa Hospital laboratory (2019). The platelet count is usually ordered separately. CBC (Complete Blood Count) with PlateletsĬonsists of several tests on blood serum. BUN (Blood Urea Nitrogen)Ĭhemistry study of blood serum to measure the level of urea in the blood, a sign of impaired kidney function or urinary obstruction. Normal range may vary somewhat according to the brand of laboratory assay materials used. May be included in blood chemistry screening panel. Please direct any questions regarding coding to the payer being billed.Acknowledgements Lab Tests Alkaline PhosphateĪlk phos, alk f, ALP. However, deviations from this range warrant prompt medical attention. Typically, levels between 6 mg/dL to 20 mg/dL suggest no concerns. High BUN levels could indicate health issues. CPT coding is the sole responsibility of the billing party. Your BUN level of 97 is a High BUN level. The CPT codes provided are based on AMA guidelines and are for informational purposes only. In most cases of chronic renal disease, the ratio remains relatively normal. When there is decreased formation of urea, as seen in liver disease, there is a decrease in the BUN/Creatinine ratio. Increased urea formation also results in an increase in the ratio, e.g. congestive heart failure or recent onset of urinary tract obstruction, will result in an increase in BUN/Creatinine ratio. Please Note: If results for BUN and Creatinine are both within the normal reference range, the BUN/Creatinine ratio will not be reported (not applicable).Ĭlinical Significance: The BUN/Creatinine ratio is useful in the differential diagnosis of acute or chronic renal disease. To calculate the new eGFR from a previous Creatinine or Cystatin C result, go to. The eGFR is based on the CKD-EPI 2021 equation. For children, from the age of 1 to 17 years old, it is considered that 7 to 20 mg/dL is a healthy value of BUN in the blood. For adult men, the normal BUN values fall between 8 to 24 mg/dL, whereas, for adult women, the normal values tend to fall between 6 and 21 mg/dL. Methodology: Photometric Assay, Calculation The levels of BUN are measured in milligrams per deciliter (mg/dL). Transport: Store serum at 2☌ to 8☌ after collection and ship the same day per packaging instructions included with the provided shipping box.Ĭauses for Rejection: Specimens other than serum improper labeling samples not stored properly samples older than stability limits Gently invert tube 5 times immediately after draw.Collect and label sample according to standard protocols. Includes: Blood Urea Nitrogen (BUN), Serum Creatinine, BUN/Creatinine Ratio, Estimated Glomerular Filtration Rate (eGFR)Ĭontainer: Gel-barrier tube (SST, Tiger Top)
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