Functional Lab Testing

Barium Enema uses contrast X-ray imaging of the colon to help assess polyps, diverticular disease, inflammation, or tumors and guide next-step evaluation.

Barium Swallow uses contrast X-ray imaging of the esophagus and stomach to help assess swallowing issues, reflux, strictures, or hiatal hernia patterns seen.

Basophil Absolute counts basophils to help assess allergy, inflammation, or hematologic disorders and support follow-up when CBC signals concern or change.

Basophil Relative measures basophils as a percent of WBCs to help assess allergic or inflammatory activity and support CBC interpretation over time in context.

Beck Anxiety Inventory (BAI) scores anxiety symptoms over the past week to help assess severity and support tracking response to care over time in clinic.

Beck Depression Inventory (BDI) scores depressive symptoms to help assess severity and support monitoring change over time during care decisions in clinic.

Behavior Assessment System for Children (BASC) uses parent/teacher ratings to help assess behavior and emotion concerns across home and school settings often.

Beighton Score rates joint flexibility to help assess generalized joint hypermobility and support evaluation of connective tissue–related pain or instability.

Betaine test measures blood betaine status to help assess methylation support and liver health, including homocysteine or fatty liver concerns, as needed.

Betaine-to-Choline Ratio assesses nutrient balance tied to methylation and liver function, helping identify imbalance patterns that may affect metabolic health.

Bile Acids Total measures circulating bile acids to help assess bile flow, liver function, and fat metabolism in cholestasis workups, itching, or jaundice.

Bilirubin Direct measures conjugated bilirubin to help assess bile flow and liver clearance when jaundice, dark urine, or suspected bile duct blockage occurs.

Bilirubin Indirect measures unconjugated bilirubin to help assess RBC breakdown and liver processing in anemia or jaundice evaluations, guiding follow-up labs.

Bilirubin Total combines direct and indirect bilirubin to help assess jaundice causes, liver function trends, and possible bile flow or blood breakdown issues.

Biopsy collects tissue for microscopic analysis to help assess inflammation, infection, or abnormal cells and guide next-step care based on pathology findings.

Bleeding on Probing checks gum bleeding with gentle probing to help assess gingival inflammation and early periodontal disease risk during routine dental exams.

Blood Alcohol Content (BAC) measures alcohol in blood to help assess impairment for medical care, legal decisions, workplace safety, and recovery monitoring.

Blood Culture grows organisms from blood to help assess bloodstream infection, identify bacteria or fungi, and support rapid, targeted antimicrobial treatment.

Blood Urea Nitrogen (BUN) measures urea nitrogen to help assess kidney waste clearance and hydration status, supporting evaluation of fatigue or swelling.

BUN-to-Creatinine Ratio compares urea and creatinine to help assess dehydration vs low kidney blood flow, supporting interpretation of kidney function changes.

Body Mass Index (BMI) calculates weight-to-height ratio to help assess weight status and cardiometabolic risk, guiding lifestyle planning and follow-up steps.

Bone Conduction testing measures inner-ear hearing via skull vibration to help distinguish conductive vs sensorineural loss and guide audiology follow-up.

Bone Scintigraphy uses a tracer scan to help assess fractures, infection, or abnormal bone turnover when X-rays are unclear, supporting targeted investigation.

Brain Natriuretic Peptide (BNP/NT-proBNP) helps assess cardiac strain and heart failure likelihood in shortness of breath, swelling, or fluid overload workups.

Bronchodilator Reversibility compares spirometry before/after inhaler to help assess airway responsiveness and support asthma vs COPD evaluation and monitoring.

C-Reactive Protein (CRP) measures inflammation in blood to help assess infection or autoimmune activity and support cardiovascular risk tracking over time.

CRH Stimulation test measures ACTH and cortisol after CRH to evaluate pituitary–adrenal signaling and guide focused endocrine follow-up testing.

Calcaneal quantitative ultrasound (QUS) scans heel bone density to help assess fracture or osteoporosis risk and support early screening without radiation.