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GRAS2 - Overview: Grass Panel # 2, Serum

Establishing a diagnosis of an allergy to Bahia, Bermuda, Johnson, June/Kentucky blue, rye, and timothy Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or...

GRAS3 - Overview: Grass Panel # 3, Serum

Establishing a diagnosis of an allergy to cultivated rye, rye, sweet vernal, timothy, and velvet leaf Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or...

TTST - Overview: Testosterone, Total, Mass Spectrometry, Serum

Evaluating men with symptoms or signs of possible hypogonadism, such as loss of libido, erectile dysfunction, gynecomastia, osteoporosis, or infertility Evaluating boys with delayed or precocious puberty Monitoring testosterone...

CA25 - Overview: Cancer Antigen 125 (CA 125), Serum

Evaluating individuals' response to ovarian cancer therapy Predicting recurrent ovarian cancer This test is not useful for cancer detection screening in the normal population.

PEAN - Overview: Peanut, IgE, Serum

Establishing a diagnosis of an allergy to peanut Defining the allergen responsible for eliciting signs and symptoms Identifying allergens: -Responsible for allergic response and/or anaphylactic episode -To confirm sensitization prior to...

AN3TS - Overview: Antineuronal Nuclear Antibody Type 3 (ANNA-3) Titer, Serum

Evaluating patients who present with a subacute neurological disorder of undetermined etiology and have risk factors for primary lung carcinoma Reporting an end titer result from serum specimens

OSG_F - Overview: Osmotic Gap, Feces

Workup of cases of chronic diarrhea Differentiating osmotic from non-osmotic causes of chronic diarrhea.

OPTU - Overview: Orthostatic Protein, Timed Collection, Urine

Diagnosis of orthostatic proteinuria As a second-order test for additional characterization of proteinuria of less than 3 grams/24 hours, particularly in children or adolescents

AN3TC - Overview: Antineuronal Nuclear Antibody Type 3 (ANNA-3) Titer, Spinal Fluid

Evaluating patients who present with a subacute neurological disorder of undetermined etiology and have risk factors for primary lung carcinoma Reporting an end titer result from cerebrospinal fluid specimens

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Mayo Clinic Ranked No. 1 Hospital Nationwide by U.S. News & World Report - Insights

Report’s 29th annual "Best Hospitals Honor Roll" published online on August 14. Mayo Clinic also ranked No. 1 in more specialties than any other hospital in the country....

NELL-1 [Test in Focus] - Insights

D., discusses how Mayo Clinic Laboratories’ new immunohistochemistry test for the detection of NELL-1 antigen, a biomarker for membranous nephropathy found in 10% to 15% of patients, provides diagnostic...

Looking Back on Clinical Chemistry 1 - Insights

in the Mayo Clinic Medical Laboratory Science program, takes a look back on her Clinical Chemistry 1 course....

Detection of (1→3)-𝝱-D-glucan as a Marker of Invasive Fungal Disease - Insights

In this month’s “Hot Topic,” Elitza Theel, Ph.D., will discuss the detection of (1→3)-β-D-glucan (BDG) in serum as a biomarker for the presence of invasive fungal infections....

Orexin-A/Hypocretin-1 for the Diagnosis of Type 1 Narcolepsy [Test in Focus] - Insights

test to perform as well as to interpret. The orexin-A/hypocretin-1 test is a sensitive and specific alternative to the MSLT to diagnose type 1 narcolepsy....