Internal Medicine Acronyms

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Internal Medicine Alphabet – B

S. No	Acronyms	Full Form	Short Explanation	Practical Example
B001	BAL	Bronchoalveolar Lavage	Diagnostic procedure to collect fluid from lungs.	BAL used in suspected TB patient.
B002	BCG	Bacillus Calmette-Guérin	Vaccine against tuberculosis.	BCG given to infants in TB-endemic countries.
B003	BCLS	Basic Cardiac Life Support	Initial emergency response for cardiac arrest.	Nurses trained in BCLS use CPR in emergencies.
B004	BDZ	Benzodiazepine	Class of sedative medications.	Diazepam is a BDZ for anxiety.
B005	BE	Base Excess	Measure of metabolic component in ABG.	Negative BE suggests metabolic acidosis.
B006	BFU-E	Burst-Forming Unit-Erythroid	Early red cell precursor in bone marrow.	BFU-E assessed in hematology studies.
B007	BG	Blood Glucose	Level of sugar in the blood.	BG monitored in diabetic patients.
B008	BGL	Blood Glucose Level	Another term for BG.	Fasting BGL measured in T2DM.
B009	BIL	Bilirubin	Breakdown product of hemoglobin.	Elevated BIL in jaundice.
B010	BiPAP	Bilevel Positive Airway Pressure	Noninvasive ventilation device.	BiPAP used in COPD exacerbation.
B011	BMI	Body Mass Index	Measure of body fat using weight and height.	BMI >30 defines obesity.
B012	BNP	B-Type Natriuretic Peptide	Hormone elevated in heart failure.	BNP ordered in dyspnea evaluation.
B013	BPD	Bronchopulmonary Dysplasia	Chronic lung disease in preterm infants.	BPD develops in ventilated neonates.
B014	BPH	Benign Prostatic Hyperplasia	Noncancerous enlargement of prostate.	Elderly man with urinary retention has BPH.
B015	BP	Blood Pressure	Force of blood against arterial walls.	Hypertension defined as BP >140/90 mmHg.
B016	BRCA	Breast Cancer Gene	Mutation increases risk of breast/ovarian cancer.	BRCA1 mutation detected in high-risk woman.
B017	BRBPR	Bright Red Blood Per Rectum	Symptom of lower GI bleed.	Hemorrhoids cause BRBPR.
B018	BSA	Body Surface Area	Measure used for drug dosing and burn size.	BSA calculated for chemo dosing.
B019	BSE	Breast Self-Examination	Screening practice for breast cancer.	Patient taught monthly BSE.
B020	BSI	Bloodstream Infection	Infection present in circulating blood.	Positive blood culture confirms BSI.
B021	BSR	Basal Skin Resistance	Measure in autonomic testing.	BSR used in neurology labs.
B022	BUN	Blood Urea Nitrogen	Marker of kidney function.	BUN elevated in renal failure.
B023	BZD	Benzodiazepine	Sedative medication class.	Lorazepam is a BZD.
B024	Bx	Biopsy	Removal of tissue for examination.	Liver Bx confirms cirrhosis.
B025	BBB	Bundle Branch Block	ECG conduction abnormality.	RBBB seen in ECG.
B026	BMD	Bone Mineral Density	Measure of bone strength.	Low BMD in osteoporosis.
B027	BMT	Bone Marrow Transplant	Replacement of diseased marrow.	BMT done in leukemia.
B028	BOOP	Bronchiolitis Obliterans Organizing Pneumonia	Rare lung condition.	BOOP treated with steroids.
B029	BPV	Benign Positional Vertigo	Dizziness due to inner ear dysfunction.	BPV diagnosed with Dix-Hallpike test.
B030	BRS	Baroreceptor Sensitivity	Reflex control of blood pressure.	Reduced BRS in elderly hypertensives.
B031	BT	Bleeding Time	Time taken for bleeding to stop.	BT prolonged in platelet disorders.
B032	BTA	Bladder Tumor Antigen	Tumor marker for bladder cancer.	BTA used in screening.
B033	BTT	Beta Thalassemia Trait	Genetic disorder of hemoglobin.	BTT detected on Hb electrophoresis.
B034	BUN/Cr	BUN-to-Creatinine Ratio	Evaluates renal function.	Ratio >20 suggests prerenal failure.
B035	BxN	Biopsy Negative	Negative histology report.	BxN excludes malignancy.
B036	BZDRA	Benzodiazepine Receptor Agonist	Drug acting on BZD receptor.	Zolpidem is a BZDRA.
B037	BPPV	Benign Paroxysmal Positional Vertigo	Vestibular disorder causing vertigo.	Positive Dix-Hallpike confirms BPPV.
B038	BDS	Twice Daily (Bis Die Sumendum)	Medical prescription shorthand.	Antibiotics prescribed BDS.
B039	BDT	Bone Densitometry Test	Imaging for osteoporosis.	BDT shows T-score -2.5.
B040	BF	Breastfeeding	Infant feeding with mother’s milk.	Exclusive BF recommended for 6 months.
B041	BGA	Blood Gas Analysis	Test for acid-base status.	BGA in ICU patient.
B042	BHL	Bilateral Hilar Lymphadenopathy	Enlargement of lung hilum nodes.	BHL in sarcoidosis.
B043	BIRADS	Breast Imaging Reporting and Data System	Breast imaging classification.	BIRADS 5 suggests malignancy.
B044	BLA	Beta-Lactamase	Enzyme breaking down beta-lactam antibiotics.	BLA production causes resistance.
B045	BLAST	Basic Local Alignment Search Tool	Genetic database search tool.	BLAST used for DNA analysis.
B046	BLS	Basic Life Support	Emergency resuscitation protocol.	Doctors certified in BLS.
B047	BM	Bone Marrow	Tissue producing blood cells.	BM biopsy performed.
B048	BMAT	Bone Marrow Adipose Tissue	Fat cells in marrow.	BMAT increases with age.
B049	BMR	Basal Metabolic Rate	Energy use at rest.	Low BMR in hypothyroidism.
B050	BMS	Burning Mouth Syndrome	Chronic oral pain disorder.	BMS in postmenopausal women.
B051	BMTU	Bone Marrow Transplant Unit	Hospital department.	Patient admitted to BMTU.
B052	BNF	British National Formulary	Drug reference guide.	Doctors consult BNF for prescribing.
B053	BNP2	Brain Natriuretic Peptide	Heart failure marker.	BNP >400 suggests CHF.
B054	BRM	Biologic Response Modifier	Immunotherapy drug.	Interferons are BRMs.
B055	BRP	Bathroom Privileges	Medical note term.	Patient allowed BRP post-surgery.
B056	BRSV	Bovine Respiratory Syncytial Virus	Veterinary relevance, but cross-reference.	Noted in zoonotic infections.
B057	BTK	Bruton’s Tyrosine Kinase	Protein in B-cell signaling.	BTK inhibitors used in CLL.
B058	BTL	Bilateral Tubal Ligation	Sterilization procedure.	BTL chosen by multiparous woman.
B059	BTTN	Buprenorphine Transdermal Therapeutic System	Pain management drug.	BTTN patch prescribed.
B060	BVD	Bovine Viral Diarrhea	Animal infection with human significance.	Screened in transplant recipients.
B061	BVF	Bacterial Vaginosis Flora	Vaginal microbiome imbalance.	BVF detected in vaginal swab.
B062	BWL	Body Weight Loss	Symptom of chronic disease.	BWL in cancer patient.
B063	BxR	Biopsy Report	Pathology documentation.	BxR confirms adenocarcinoma.
B064	BZD2	Benzodiazepine	Drug group.	Alprazolam is BZD.
B065	BCS	Breast-Conserving Surgery	Lumpectomy for breast cancer.	BCS followed by radiotherapy.
B066	BCLC	Barcelona Clinic Liver Cancer Classification	Staging for HCC.	BCLC stage B guides treatment.
B067	BCGitis	BCG Vaccine-Induced Inflammation	Adverse effect of vaccine.	Local swelling after BCG.
B068	BDR	Bronchodilator Response	Spirometry measurement.	Positive BDR in asthma.
B069	BDS2	Twice Daily Dose	Prescription abbreviation.	Metformin prescribed BDS.
B070	BDT2	Bone Density Test	Test for osteoporosis.	BDT score < -2.5 = osteoporosis.
B071	BEP	Bleomycin, Etoposide, Cisplatin	Chemotherapy regimen.	BEP used in testicular cancer.
B072	BFA	Beta-Fetoprotein Antigen	Tumor marker.	Elevated in liver cancer.
B073	BHE	Benign Hepatic Enzyme Elevation	Mild LFT abnormality.	Common in fatty liver.
B074	BHS	Beta-Hemolytic Streptococcus	Group A strep.	BHS causes pharyngitis.
B075	BI	Bowel Infarction	Intestinal necrosis.	BI after mesenteric ischemia.
B076	BIL2	Bilirubin	Blood pigment.	Elevated in hemolysis.
B077	BIS	Bispectral Index	Anesthesia monitoring tool.	BIS 40–60 for adequate anesthesia.
B078	BK Virus	BK Polyomavirus	Opportunistic virus in transplant patients.	BK virus nephropathy in kidney transplant.
B079	BKA	Below Knee Amputation	Surgical procedure.	BKA in diabetic foot gangrene.
B080	BL	Burkitt Lymphoma	Aggressive B-cell lymphoma.	BL common in Africa.

S. No	Acronyms	Full Form	Short Explanation	Practical Example
B081	BLSA	Baltimore Longitudinal Study of Aging	Landmark study on aging and disease.	BLSA findings guide geriatric medicine.
B082	BLVR	Bronchoscopic Lung Volume Reduction	Minimally invasive COPD therapy.	BLVR done with endobronchial valves.
B083	BMES	Bone Marrow Edema Syndrome	Painful but self-limiting condition.	MRI shows BMES in hip pain.
B084	BMP	Basic Metabolic Panel	Routine blood test assessing electrolytes, kidney function.	BMP ordered for dehydration.
B085	BMPR2	Bone Morphogenetic Protein Receptor 2	Gene linked to pulmonary hypertension.	BMPR2 mutation tested in PAH.
B086	BMSCs	Bone Marrow Stromal Cells	Stem cells with regenerative potential.	BMSCs used in cell therapy research.
B087	BN	Bulimia Nervosa	Eating disorder with binging and purging.	BN diagnosed in young women.
B088	BND	Bone Nodular Disease	Bone-related condition seen in radiology.	BND noted on skeletal scan.
B089	BNP3	Brain Natriuretic Peptide	Marker for cardiac stress.	BNP elevated in CHF.
B090	BOF	Blood Oxygen Fraction	Measure in respiratory physiology.	BOF monitored in ventilator patients.
B091	BOO	Bladder Outlet Obstruction	Blockage at bladder neck or urethra.	BOO common in BPH.
B092	BOS	Bronchiolitis Obliterans Syndrome	Chronic rejection post-lung transplant.	BOS suspected with progressive airflow limitation.
B093	BOT	Base of Tongue	Anatomical region relevant in ENT oncology.	BOT cancers require radiation.
B094	BPAD	Bipolar Affective Disorder	Psychiatric condition with mood swings.	BPAD managed with lithium.
B095	BPE	Benign Prostatic Enlargement	Another term for BPH.	LUTS often due to BPE.
B096	BPF	Bronchopleural Fistula	Abnormal connection between bronchus and pleura.	BPF complicates post-lung surgery.
B097	BPI	Brachial Plexus Injury	Nerve injury affecting upper limb.	BPI occurs after trauma.
B098	BPP	Biophysical Profile	Antenatal ultrasound assessment of fetal well-being.	BPP score of 8/10 reassuring.
B099	BPV2	Benign Positional Vertigo	Vestibular disorder causing dizziness.	Positive Hallpike test confirms BPV.
B100	BR	Bed Rest	Common hospital management order.	Strict BR for spinal fracture.
B101	BRAO	Branch Retinal Artery Occlusion	Sudden vision loss from arterial blockage.	BRAO seen in elderly hypertensives.
B102	BRCA2	Breast Cancer Gene 2	Mutation conferring breast/ovarian cancer risk.	BRCA2 carriers offered prophylactic mastectomy.
B103	BRD	Bovine Respiratory Disease	Veterinary infection relevant to zoonosis.	BRD studied in epidemiology.
B104	BRE	Breast	Common anatomical abbreviation.	BRE ultrasound ordered.
B105	BRF	Brain Reserve Function	Cognitive reserve protecting against dementia.	High BRF delays Alzheimer’s symptoms.
B106	BRMS	Bone-Related Metastatic Syndrome	Cancer-related bone pain.	BRMS in prostate cancer metastasis.
B107	BRO	Bronchiectasis	Permanent bronchial dilation.	BRO seen in chronic infections.
B108	BRP2	Bathroom Privileges	Ward note abbreviation.	Patient allowed BRP post-op.
B109	BRS2	Baroreceptor Sensitivity	Cardiovascular reflex control.	Low BRS in elderly HTN.
B110	BRT	Blood Replacement Therapy	Transfusion-based therapy.	BRT in severe hemorrhage.
B111	BRVO	Branch Retinal Vein Occlusion	Retinal disorder causing vision loss.	BRVO treated with intravitreal injections.
B112	BSA2	Body Surface Area	Used in drug dosing.	BSA determines chemo dose.
B113	BSC	Best Supportive Care	Palliative approach in advanced disease.	BSC provided in terminal cancer.
B114	BSD	Brain Stem Death	Legal definition of death.	BSD confirmed in ICU.
B115	BSG	British Society of Gastroenterology	UK gastroenterology body.	BSG guidelines followed in endoscopy.
B116	BSH	British Society of Haematology	Professional society for hematologists.	BSH publishes transfusion protocols.
B117	BSID	Bayley Scales of Infant Development	Pediatric assessment tool.	BSID used in developmental delay.
B118	BSL	Blood Sugar Level	Synonym for blood glucose.	BSL measured in diabetes clinic.
B119	BSP	Bone-Specific Alkaline Phosphatase	Marker of bone turnover.	BSP elevated in Paget’s disease.
B120	BSS	Balanced Salt Solution	Ophthalmic surgical fluid.	BSS used in cataract surgery.
B121	BST	Bedside Test	Quick clinical diagnostic test.	BST for urine ketones.
B122	BTK2	Bruton Tyrosine Kinase	Enzyme targeted in leukemia therapy.	Ibrutinib is a BTK inhibitor.
B123	BTPS	Body Temperature, Pressure, Saturated	Pulmonary physiology standard condition.	BTPS correction applied in spirometry.
B124	BTT	Bone Tunnel Technique	Orthopedic surgical method.	BTT used in ACL reconstruction.
B125	BU	Blood Urea	Waste product of protein metabolism.	BU elevated in renal failure.
B126	BUN2	Blood Urea Nitrogen	Kidney function marker.	BUN monitored in ICU.
B127	BURP	Backward, Upward, Rightward Pressure	Maneuver in airway management.	BURP applied during intubation.
B128	BVDV	Bovine Viral Diarrhea Virus	Animal infection studied in virology.	BVDV screened in transplant settings.
B129	BVF2	Bacterial Vaginosis Flora	Vaginal infection microbiome.	BVF treatment includes metronidazole.
B130	BW	Body Weight	Anthropometric measurement.	BW recorded on admission.
B131	BWI	Birth Weight Infant	Classification of newborns.	Low BWI = <2500g.
B132	BWS	Beckwith-Wiedemann Syndrome	Congenital overgrowth disorder.	BWS infants at risk of tumors.
B133	BX	Biopsy	Tissue sampling.	BX confirms malignancy.
B134	BYP	Bypass	Surgical diversion.	Coronary artery BYP performed.
B135	BZD3	Benzodiazepine	Sedative drug class.	BZD prescribed for insomnia.
B136	BZDRA2	Benzodiazepine Receptor Agonist	Hypnotic drug category.	Zopiclone is a BZDRA.
B137	BZLF	Burkitt Zoster Lymphoma Fusion	Rare pathology abbreviation.	Used in hematology research.
B138	BZP	Benzylpiperazine	Psychoactive stimulant.	BZP toxicity reported in ED.
B139	BZW	Brain Z-Waves	Neurophysiological term.	Studied in sleep medicine.
B140	B1	Vitamin B1 (Thiamine)	Essential vitamin for metabolism.	B1 deficiency causes beriberi.
B141	B2	Vitamin B2 (Riboflavin)	Water-soluble vitamin.	B2 deficiency causes cheilitis.
B142	B3	Vitamin B3 (Niacin)	Vitamin for NAD/NADP synthesis.	B3 deficiency causes pellagra.
B143	B6	Vitamin B6 (Pyridoxine)	Vitamin involved in neurotransmitters.	B6 deficiency causes neuropathy.
B144	B12	Vitamin B12 (Cobalamin)	Essential vitamin for RBCs.	B12 deficiency causes megaloblastic anemia.
B145	BCR	Breakpoint Cluster Region	Gene in CML (Philadelphia chromosome).	BCR-ABL fusion drives leukemia.
B146	BCRP	Breast Cancer Resistance Protein	Drug efflux pump.	BCRP affects chemo response.
B147	BCSH	British Committee for Standards in Haematology	UK hematology guideline body.	BCSH publishes transfusion guidelines.
B148	BDI	Beck Depression Inventory	Depression assessment tool.	BDI score used in psychiatry.
B149	BDG	Beta-D-Glucan	Fungal cell wall component, infection marker.	Serum BDG used in fungal infections.
B150	BDS3	Twice Daily Prescription	Prescription shorthand.	Metformin prescribed BDS.
B151	BHD	Birt-Hogg-Dubé Syndrome	Genetic cancer predisposition.	BHD associated with renal tumors.
B152	BHV	Bovine Herpes Virus	Veterinary infection with medical interest.	Studied in zoonoses.
B153	BIA	Bioelectrical Impedance Analysis	Body composition test.	BIA used for obesity assessment.
B154	BIC	Bicarbonate	Electrolyte in acid-base balance.	Low BIC in metabolic acidosis.
B155	BID	Bis in Die (Twice Daily)	Prescription term.	Antihypertensives prescribed BID.
B156	BIO	Biopsy	Tissue sample analysis.	BIO confirms diagnosis.
B157	BIS2	Bispectral Index	Anesthesia depth monitor.	BIS maintained at 50 during surgery.
B158	BK	Below Knee	Surgical terminology.	BK amputation noted in chart.
B159	BKA2	Below Knee Amputation	Surgical removal.	BKA done for gangrene.
B160	BLC	Basal-Like Carcinoma	Breast cancer subtype.	BLC detected in pathology.
B161	BLE	Bilateral Lower Extremities	Clinical note term.	Edema in BLE.
B162	BLQ	Below Limit of Quantification	Lab test reporting.	Drug level BLQ.
B163	BLR	Bilateral Reflex	Neurology exam term.	BLR absent in neuropathy.
B164	BLS2	Basic Life Support	Emergency care training.	Staff certified in BLS.
B165	BMD2	Bone Mineral Density	Osteoporosis marker.	DXA scan shows low BMD.
B166	BMF	Bone Marrow Failure	Condition of reduced hematopoiesis.	Aplastic anemia is BMF.
B167	BMJ	British Medical Journal	Renowned medical journal.	Case study published in BMJ.
B168	BMR2	Basal Metabolic Rate	Energy expenditure at rest.	BMR declines with age.
B169	BMS2	Burning Mouth Syndrome	Oral condition.	BMS seen in diabetics.
B170	BMT2	Bone Marrow Transplant	Hematology treatment.	BMT curative in leukemia.
B171	BMU	Bone Multicellular Unit	Osteoclast-osteoblast group in bone turnover.	BMU studied in osteoporosis.
B172	BMZ	Benzimidazole	Anthelmintic drug class.	Albendazole is BMZ.
B173	BNA	Basal Nuclei of Amygdala	Brain region.	BNA studied in neurology.
B174	BNF2	British National Formulary	Prescribing reference.	Doctors consult BNF daily.
B175	BNR	Bilateral Nasal Reflex	ENT exam term.	BNR absent in rhinitis.
B176	BNT	Brief Neuropsychological Test	Memory screening.	BNT used in dementia clinic.
B177	BOA	Branchial Otic Abnormality	Congenital ENT disorder.	BOA detected on imaging.
B178	BOC	Beta-Oxidation Cycle	Metabolic pathway of fats.	BOC impaired in MCAD deficiency.
B179	BOH	Bad Obstetric History	Obstetric term.	BOH noted in antenatal card.
B180	BOM	Bilateral Otitis Media	Middle ear infection.	BOM diagnosed in child.
B181	BOP	Bleeding on Probing	Dental finding.	BOP indicates gingivitis.
B182	BOV	Bovine Origin Virus	Veterinary zoonosis.	BOV studied in labs.
B183	BP	Blood Pressure	Cardiovascular measure.	Hypertension = high BP.
B184	BPD2	Bronchopulmonary Dysplasia	Neonatal chronic lung disease.	Preterm infant develops BPD.
B185	BPES	Blepharophimosis Ptosis Epicanthus Syndrome	Congenital eyelid disorder.	BPES managed surgically.
B186	BPF2	Bronchopleural Fistula	Lung complication.	BPF after lobectomy.
B187	BPI2	Brachial Plexus Injury	Neurological trauma.	BPI after motorcycle accident.
B188	BPP2	Biophysical Profile	Fetal well-being scan.	BPP = 10/10 normal.
B189	BPR	Blood Pressure Reading	Clinical vital sign.	BPR taken every 4 hours.
B190	BPS	Bronchopulmonary Sequestration	Congenital lung malformation.	BPS diagnosed in child.
B191	BPT	Bachelor of Physiotherapy	Allied health qualification.	Doctor collaborates with BPT.
B192	BPV3	Benign Positional Vertigo	ENT disorder.	BPV treated with Epley maneuver.
B193	BRCS	Breast Reconstruction Surgery	Surgical procedure post-mastectomy.	BRCS offered to breast cancer survivors.
B194	BRD2	Bovine Respiratory Disease	Veterinary term.	BRD considered in zoonosis.
B195	BRH	Brain Hemorrhage	Intracranial bleed.	CT shows BRH.
B196	BRM2	Biologic Response Modifier	Immunotherapy.	Used in RA treatment.
B197	BRO2	Bronchiectasis	Lung condition.	HRCT shows BRO.
B198	BRVO2	Branch Retinal Vein Occlusion	Retinal vascular disease.	BRVO treated with anti-VEGF.
B199	BSA3	Body Surface Area	Clinical parameter.	Chemo dosing uses BSA.
B200	BSI2	Bloodstream Infection	Sepsis marker.	Positive culture confirms BSI.