Internal Medicine Abbreviations

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Internal Medicine Alphabet – B

S. No	Abbreviation	Full Form	Short Explanation	Practical Example
B001	BA	Bronchial Asthma	Chronic inflammatory airway disease with reversible obstruction.	Wheezing and dyspnea treated with inhalers.
B002	BAC	Blood Alcohol Concentration	Measure of alcohol in blood.	Used in ER intoxication cases.
B003	BAL	Bronchoalveolar Lavage	Diagnostic fluid sampling from lungs.	Used in pneumonia diagnosis.
B004	BBB	Bundle Branch Block	Cardiac conduction abnormality seen on ECG.	Left BBB in myocardial infarction.
B005	BCG	Bacillus Calmette–Guérin	Vaccine against tuberculosis.	Used in newborn immunization.
B006	BD	Bipolar Disorder	Psychiatric condition with mood swings.	Managed with lithium or valproate.
B007	BE	Base Excess	Blood gas parameter indicating metabolic status.	Negative BE in metabolic acidosis.
B008	BKA	Below Knee Amputation	Surgical removal of leg below knee.	Performed in severe diabetic foot.
B009	BMI	Body Mass Index	Ratio of weight to height indicating obesity.	BMI >30 = obesity.
B010	BNP	Brain Natriuretic Peptide	Cardiac biomarker for heart failure.	Elevated in decompensated CHF.
B011	BP	Blood Pressure	Force of blood against arterial walls.	Hypertension = BP ≥140/90 mmHg.
B012	BPH	Benign Prostatic Hyperplasia	Prostate enlargement causing urinary obstruction.	Treated with tamsulosin.
B013	BPPV	Benign Paroxysmal Positional Vertigo	Vertigo triggered by head movement.	Treated with Epley maneuver.
B014	BRBPR	Bright Red Blood Per Rectum	Sign of lower GI bleed.	Seen in hemorrhoids or polyps.
B015	BRCA	Breast Cancer Gene	Mutation increasing breast/ovarian cancer risk.	BRCA1 mutation screening.
B016	BRP	Bathroom Privileges	Allowing patient mobility to restroom.	Written in hospital orders.
B017	BSA	Body Surface Area	Measurement used in drug dosing.	Chemo doses calculated via BSA.
B018	BSE	Breast Self-Examination	Self-screening for breast lumps.	Used for early cancer detection.
B019	BSL	Blood Sugar Level	Measure of glucose in blood.	Fasting BSL >126 mg/dL = diabetes.
B020	BUN	Blood Urea Nitrogen	Kidney function marker.	Elevated in renal failure.
B021	BZD	Benzodiazepine	Class of sedatives and anxiolytics.	Diazepam for anxiety.
B022	BZP	Benzylpiperazine	Recreational stimulant drug.	Seen in ER toxicity.
B023	BV	Bacterial Vaginosis	Vaginal infection due to flora imbalance.	Treated with metronidazole.
B024	Bx	Biopsy	Tissue removal for diagnosis.	Liver biopsy in hepatitis.
B025	BGA	Blood Gas Analysis	pH, CO₂, O₂ measurement.	Used in respiratory failure.
B026	BCT	Bone Conduction Test	Hearing test with tuning fork.	Rinne/Weber tests.
B027	BMS	Burning Mouth Syndrome	Chronic oral pain without lesions.	Menopause-related.
B028	BMT	Bone Marrow Transplant	Replacement of diseased marrow.	Used in leukemia.
B029	BMD	Bone Mineral Density	Measure of bone strength.	DEXA scan for osteoporosis.
B030	BMJ	British Medical Journal	Renowned medical journal.	Source of clinical research.
B031	BPV	Benign Positional Vertigo	Alternate term for BPPV.	Vestibular rehab used.
B032	BR	Bed Rest	Rest in bed for recovery.	Prescribed after MI.
B033	BRN	Basal Rate of Nutrition	Minimum nutrition required daily.	ICU nutrition calculation.
B034	BRS	Baroreceptor Sensitivity	Reflex for BP control.	Reduced in hypertension.
B035	BRT	Bronchial Reactivity Test	Measures airway responsiveness.	Asthma confirmation.
B036	BS	Bowel Sounds	Gut motility sounds.	Absent in ileus.
B037	BSE	Bovine Spongiform Encephalopathy	Prion disease in cattle.	Related to vCJD.
B038	BT	Bleeding Time	Platelet function test.	Prolonged in thrombocytopenia.
B039	BTM	Beta-Thalassemia Major	Genetic anemia.	Needs regular transfusions.
B040	BTR	Brachial Triceps Reflex	Neurological reflex.	Absent in cervical lesion.
B041	BUE	Bilateral Upper Extremities	Both arms term.	Weakness in stroke.
B042	BWS	Body Weight Support	Gait training rehab.	Stroke physiotherapy.
B043	BZDRA	Benzodiazepine Receptor Agonist	Sleep-inducing drugs.	Zolpidem use.
B044	BZP	Blood Pressure Zone	Classification of BP.	Stage II HTN.
B045	BAP	Bone Alkaline Phosphatase	Bone turnover marker.	Paget’s disease.
B046	BCLS	Basic Cardiac Life Support	Basic resuscitation.	CPR in emergencies.
B047	BDZ	Benzodiazepine	Alternate for BZD.	Alprazolam for panic.
B048	BPF	Bronchopleural Fistula	Abnormal airway-pleura link.	Post-lung surgery.
B049	BSS	Balanced Salt Solution	Ophthalmic surgical fluid.	Corneal hydration.
B050	BZDPM	Benzodiazepine Poisoning Management	Overdose treatment.	Flumazenil antidote.
B051	BC	Blood Culture	Test for bloodstream infection.	Used in septicemia.
B052	BCGitis	BCG Vaccine-Induced Lymphadenitis	Complication post-vaccine.	Seen in infants.
B053	BCLS-AED	Basic Life Support with AED	CPR with defibrillator.	Used in sudden cardiac arrest.
B054	BCL2	B-cell Lymphoma 2 Gene	Anti-apoptotic gene.	Overexpressed in lymphomas.
B055	BCR	Breakpoint Cluster Region	Gene involved in leukemia.	BCR-ABL in CML.
B056	BCR-ABL	Fusion Oncogene	Philadelphia chromosome gene.	CML diagnosis marker.
B057	BCVA	Best Corrected Visual Acuity	Eye exam measure.	Post-cataract surgery testing.
B058	BDS	Bachelor of Dental Surgery	Dental medical degree.	Practicing dentists.
B059	BEP	Bleomycin, Etoposide, Cisplatin	Chemotherapy regimen.	Testicular cancer treatment.
B060	BF	Breastfeeding	Feeding infant with breast milk.	Neonatal nutrition.
B061	BFP	Biological False Positive	False-positive serology.	VDRL test in SLE.
B062	BHCG	Beta-Human Chorionic Gonadotropin	Pregnancy/tumor marker.	Elevated in choriocarcinoma.
B063	BHD	Birt-Hogg-Dubé Syndrome	Rare genetic disorder.	Skin, lung, renal tumors.
B064	BI	Bacterial Index	TB leprosy measurement.	Bacilli per smear.
B065	BID	Bis in Die	Twice daily dosing.	Antibiotics prescribed BID.
B066	BIOPSY	Biological Specimen Exam	Histopath exam.	Cancer confirmation.
B067	BIPAP	Bilevel Positive Airway Pressure	Noninvasive ventilator support.	Used in COPD exacerbation.
B068	BISAP	Bedside Index of Severity in Acute Pancreatitis	Prognostic score.	Predicts severity.
B069	BK	BK Virus	Polyomavirus.	Causes nephropathy post-transplant.
B070	BLA	Beta-Lactamase	Enzyme degrading beta-lactam antibiotics.	MRSA resistance.
B071	BLAST	Basic Local Alignment Search Tool	Genetic sequence alignment.	Genomic studies.
B072	BLR	Blood Lipid Ratio	Cholesterol risk measure.	CAD risk prediction.
B073	BM	Bone Marrow	Soft tissue producing blood cells.	Biopsy in leukemia.
B074	BME	Bone Marrow Edema	MRI finding.	Seen in trauma.
B075	BMP	Basic Metabolic Panel	Lab panel with electrolytes.	ER kidney check.
B076	BMR	Basal Metabolic Rate	Energy expenditure at rest.	Low in hypothyroidism.
B077	BMS	Bone Marrow Suppression	Reduced marrow activity.	Chemotherapy side effect.
B078	BNP-t	BNP Test	Lab test for BNP.	CHF diagnosis.
B079	BOOP	Bronchiolitis Obliterans Organizing Pneumonia	Lung inflammatory disorder.	Steroid-responsive.
B080	BPAP	Bilevel Positive Airway Pressure	Same as BiPAP.	Used in sleep apnea.
B081	BPD	Borderline Personality Disorder	Psychiatric condition.	Treated with DBT.
B082	BPHN	Benign Prostatic Hyperplasia with Nocturia	Enlarged prostate with night urination.	Tamsulosin prescribed.
B083	BPP	Biophysical Profile	Prenatal fetal test.	Monitors well-being.
B084	BPT	Bachelor of Physiotherapy	Medical degree.	Physiotherapists.
B085	BRAT	Bananas, Rice, Applesauce, Toast	Diet for diarrhea.	Pediatric use.
B086	BRTO	Balloon-Occluded Retrograde Transvenous Obliteration	Treatment for gastric varices.	Used in portal HTN.
B087	BSF	Blood Sugar Fasting	Glucose test.	Diabetes screening.
B088	BSLPP	Blood Sugar Level Postprandial	Glucose test after meals.	Diabetes control monitoring.
B089	BSO	Bilateral Salpingo-Oophorectomy	Removal of ovaries + tubes.	Ovarian cancer surgery.
B090	BSSO	Bilateral Sagittal Split Osteotomy	Jaw surgery.	Corrects deformities.
B091	BTK	Bruton Tyrosine Kinase	Gene in X-linked agammaglobulinemia.	Immunodeficiency marker.
B092	BTL	Bilateral Tubal Ligation	Permanent sterilization.	Family planning.
B093	BTMN	Beta-Thalassemia Minor	Carrier state.	Mild anemia.
B094	BTO	Balloon Test Occlusion	Neurointervention test.	Aneurysm management.
B095	BTRU	Blood Transfusion Unit	Hospital department.	Manages blood supply.
B096	BTS	British Thoracic Society	Clinical guideline body.	Issues asthma guidelines.
B097	BTT	Breath-Taking Test	Clinical lung exam.	Used in dyspnea.
B098	BU	Blood Urea	Kidney function test.	Similar to BUN.
B099	BUEX	Bilateral Upper Extremity Examination	Arm neuro exam.	Stroke cases.
B100	BWF	Bleeding with Frequency	Clinical term.	Menorrhagia description.

S. No	Abbreviation	Full Form	Short Explanation	Practical Example
B101	BLM	Bleomycin	Chemotherapy drug causing pulmonary toxicity	Oncologists avoid high cumulative doses of BLM.
B102	BNP	Brain Natriuretic Peptide	Cardiac biomarker elevated in heart failure	BNP >100 pg/mL suggests decompensated CHF.
B103	BRCA	Breast Cancer Gene	Genetic mutation increasing risk of breast/ovarian cancer	BRCA1 mutation carriers undergo screening.
B104	BRS	Baroreceptor Sensitivity	Reflex controlling blood pressure regulation	Low BRS increases cardiovascular risk.
B105	BS	Blood Sugar	Common term for glucose measurement	Morning BS checked in diabetics.
B106	BSA	Body Surface Area	Used to calculate chemotherapy or drug dosing	Doses of cisplatin are calculated on BSA.
B107	BSL	Blood Sugar Level	Another term for glucose concentration	Insulin adjusted based on patient’s BSL.
B108	BSO	Bilateral Salpingo-Oophorectomy	Removal of both ovaries and fallopian tubes	Indicated in ovarian malignancy.
B109	BT	Bleeding Time	Test for platelet function	Prolonged BT in thrombocytopathy.
B110	BUN	Blood Urea Nitrogen	Kidney function marker	BUN elevated in renal failure.
B111	BZD	Benzodiazepine	Class of sedative medications	Lorazepam is a BZD used for anxiety.
B112	BAL	Bronchoalveolar Lavage	Diagnostic pulmonary procedure	BAL detects TB or pneumonia.
B113	BAV	Bicuspid Aortic Valve	Congenital heart valve abnormality	BAV increases risk of aortic stenosis.
B114	BCC	Basal Cell Carcinoma	Common skin cancer, rarely metastasizes	BCC excised from the face.
B115	BCLS	Basic Cardiac Life Support	Resuscitation training method	Nurses trained in BCLS for emergencies.
B116	BDZ	Benzodiazepine	Alternate abbreviation for sedatives	Diazepam is a BDZ used in seizures.
B117	BE	Base Excess	Measurement of metabolic acidosis/alkalosis	Negative BE indicates metabolic acidosis.
B118	BI	Body Index	General term for anthropometric measurement	BI used in nutritional assessments.
B119	BID	Bis in Die (Twice Daily)	Latin prescription term	Metformin 500 mg BID prescribed for diabetes.
B120	BIPAP	Bilevel Positive Airway Pressure	Noninvasive ventilation mode	BIPAP used in COPD exacerbation.
B121	BKA	Below Knee Amputation	Amputation below knee joint	BKA performed in severe PAD cases.
B122	BLL	Blood Lead Level	Screening test for lead toxicity	Children screened for elevated BLL.
B123	BLQ	Below Limit of Quantification	Lab value too low to be measured	Viral load BLQ after therapy.
B124	BM	Bone Marrow	Primary hematopoietic tissue	BM biopsy done in leukemia.
B125	BMI	Body Mass Index	Weight/height-based obesity index	BMI >30 defines obesity.
B126	BMP	Basic Metabolic Panel	Set of blood chemistry tests	BMP monitors electrolytes in ICU.
B127	BMPR	Bone Morphogenetic Protein Receptor	Involved in cell signaling pathways	Mutations in BMPR linked to PAH.
B128	BMT	Bone Marrow Transplant	Treatment for hematologic malignancies	BMT performed in ALL.
B129	BO	Bowel Obstruction	Blockage in intestine	BO causes abdominal pain and vomiting.
B130	BP	Blood Pressure	Force exerted by blood on vessels	Hypertension defined as BP >140/90.
B131	BPH	Benign Prostatic Hyperplasia	Non-cancerous enlargement of prostate	BPH causes urinary hesitancy.
B132	BPI	Brachial Plexus Injury	Damage to brachial nerve plexus	BPI after trauma leads to arm weakness.
B133	BPM	Beats Per Minute	Heart rate measurement	HR of 80 BPM normal in adults.
B134	BPP	Biophysical Profile	Prenatal test assessing fetal well-being	BPP includes fetal HR, movement, breathing.
B135	BPPV	Benign Paroxysmal Positional Vertigo	Inner ear disorder causing dizziness	Treated with Epley maneuver.
B136	BRBPR	Bright Red Blood Per Rectum	Symptom of lower GI bleeding	Hemorrhoids cause BRBPR.
B137	BRD	Bronchodilator	Drug relaxing airway smooth muscle	Albuterol is a BRD for asthma.
B138	BRE	Breast Examination	Clinical/physical examination of breast	BRE detects lumps or masses.
B139	BRFSS	Behavioral Risk Factor Surveillance System	US health survey on chronic diseases	Data from BRFSS used in public health.
B140	BRM	Biological Response Modifier	Immunotherapy agents	Interferon is a BRM used in cancer.
B141	BRP	Bathroom Privileges	Nursing order indicating mobility status	Patient allowed BRP post-surgery.
B142	BRSV	Bronchiolitis Respiratory Syncytial Virus	Virus causing bronchiolitis in children	BRSV leads to winter hospitalizations.
B143	BRT	Breath Test	Diagnostic test for H. pylori	Urea breath test used in dyspepsia.
B144	BRVO	Branch Retinal Vein Occlusion	Retinal vein blockage	BRVO causes sudden vision loss.
B145	BSAF	Benign Skin Adnexal Follicular tumor	Benign cutaneous tumor	Biopsy confirms BSAF diagnosis.
B146	BSC	Bedside Commode	Assistive device for toileting	Used for elderly with mobility issues.
B147	BSD	Brain Stem Death	Irreversible cessation of brainstem function	BSD criteria required for organ donation.
B148	BSG	British Society of Gastroenterology	UK medical society for GI diseases	BSG guidelines used for IBD management.
B149	BSLT	Basal Sliding Laryngotracheoplasty	Airway reconstructive surgery	BSLT done in pediatric airway stenosis.
B150	BSP	Blood Smear Peripheral	Microscopic exam of blood cells	BSP helps diagnose malaria.
B151	BTcP	Breakthrough Cancer Pain	Sudden severe pain in cancer patients	Managed with fentanyl.
B152	BTK	Below the Knee	Anatomical reference in surgery	BTK bypass done in PAD.
B153	BTL	Bilateral Tubal Ligation	Permanent sterilization procedure	BTL performed after delivery.
B154	BTP	Breakthrough Pain	Pain despite baseline medication	BTP requires opioid adjustment.
B155	BTR	Bronchial Thermoplasty	Asthma treatment reducing smooth muscle	Used in severe refractory asthma.
B156	BTT	Blalock–Taussig Shunt	Palliative heart surgery in cyanotic CHD	BTT connects subclavian artery to pulmonary artery.
B157	BUN:Cr	Blood Urea Nitrogen to Creatinine Ratio	Differentiates prerenal vs renal failure	Ratio >20 suggests prerenal cause.
B158	BUR	Burns Unit Referral	Transfer to specialized burn center	Major burns require BUR.
B159	BVA	Blood Volume Analysis	Measures circulating blood volume	Used in heart failure patients.
B160	BVC	Breathlessness, Volume, Circulation	Clinical assessment method	BVC used in cardiopulmonary monitoring.
B161	BVD	Bovine Viral Diarrhea	Zoonotic viral disease with human relevance	Veterinarians screen cattle for BVD.
B162	BVE	Broncho-Vascular Enlargement	Radiological finding in lung disease	Seen in pulmonary hypertension.
B163	BVI	Bedside Visual Inspection	Clinical examination of lesions	BVI for skin ulcers.
B164	BVP	Blood Volume Pulse	Indicator of circulatory status	BVP measured by photoplethysmography.
B165	BVT	Bovine Valve Transplant	Valve replacement using bovine tissue	BVT used in aortic valve disease.
B166	BW	Body Weight	Patient’s measured weight	Doses adjusted according to BW.
B167	BWC	Blood Workup Complete	Comprehensive lab panel	BWC requested for general checkup.
B168	BWS	Beckwith–Wiedemann Syndrome	Genetic overgrowth disorder	BWS associated with macroglossia.
B169	BWT	Body Water Total	Proportion of body weight from water	BWT decreases in dehydration.
B170	BX	Biopsy	Removal of tissue for histology	BX confirms cancer.
B171	BYP	Bypass	Surgical rerouting of blood or food	CABG is a coronary bypass procedure.
B172	BZDRA	Benzodiazepine Receptor Agonist	Sedative-hypnotic drug class	Zolpidem is a BZDRA.
B173	BZP	Benzylpiperazine	Recreational stimulant drug	Rarely relevant in toxicology.
B174	BZRA	Benzodiazepine Receptor Agonist	Alternate abbreviation for sedatives	Used in insomnia.
B175	BZr	Benzodiazepine Receptor	Neurotransmitter receptor for GABA	BZr involved in anxiety disorders.
B176	BZF	Benzafibrate	Lipid-lowering medication	BZF reduces triglycerides.
B177	BZS	Bezafibrate	Same as BZF	Prescribed for dyslipidemia.
B178	BZO	Benzodiazepine Overdose	Toxic state due to BZD excess	Flumazenil reverses BZO.
B179	BZT	Benztropine	Anticholinergic used in Parkinson’s disease	BZT reduces tremor.
B180	BZW	Benzodiazepine Withdrawal	Syndrome after stopping BZD	BZW causes seizures if abrupt.
B181	BZY	Brinzolamide	Ophthalmic drug for glaucoma	BZY reduces intraocular pressure.
B182	BZL	Benznidazole	Antiparasitic for Chagas disease	BZL used in endemic areas.
B183	BZZ	Breztri Aerosphere	Triple therapy inhaler for COPD	Contains budesonide, glycopyrrolate, formoterol.
B184	BfV	Blood Flow Velocity	Doppler measurement	BfV used in carotid US.
B185	BGA	Blood Gas Analysis	Measures oxygen, CO₂, pH	BGA critical in ICU care.
B186	BGR	Blood Glucose Random	Non-fasting glucose test	BGR >200 mg/dL suggests diabetes.
B187	BGT	Blood Glucose Test	Any form of glucose measurement	BGT done in screening camps.
B188	BGL	Blood Glucose Level	Alternate term for blood sugar	Monitored in insulin therapy.
B189	BGE	Bacterial Gastroenteritis	Foodborne intestinal infection	BGE causes diarrhea and vomiting.
B190	BGN	Bacterial Gram-Negative	Category of bacteria	E. coli is BGN.
B191	BGP	Bacterial Gram-Positive	Category of bacteria	Staphylococcus aureus is BGP.
B192	BHP	Benign Hypertensive Proteinuria	Proteinuria due to benign HTN	BHP seen in long-term hypertension.
B193	BIA	Bioelectrical Impedance Analysis	Technique to measure body fat %	BIA used in nutrition clinics.
B194	BIC	Bicarbonate	Buffering ion in blood	Low BIC in metabolic acidosis.
B195	BCRP	Breast Cancer Resistance Protein	Transporter linked to chemotherapy resistance	BCRP tested in oncology research.
B196	BDL	Below Detection Limit	Value too low to be detected in lab test	Viral load BDL after HAART.
B197	BME	Bone Marrow Edema	MRI finding in musculoskeletal disease	BME seen in osteoarthritis.
B198	BHPN	Benign Hypertensive Nephropathy	Kidney damage due to chronic HTN	BHPN causes progressive CKD.
B199	BSK	Borrelia Specific Kinetics	Test related to Lyme disease	BSK medium used for Borrelia culture.
B200	BZDWI	Benzodiazepine-Withdrawal Insomnia	Rebound insomnia after stopping BZDs	BZDWI managed with tapering.