[L.] bis in die, twice a day BIDS brittle hair, impaired intelligence, decreased fertility, and short stature (syndrome) BIPAP bilevel positive airway pressure Bk berkelium BM bowel movement BMD bone mineral density BMI body mass index BNEd Bachelor of Nursing Education BNP brain natriuretic peptide BNSc Bachelor of Nursing Science bp base pair BP blood pressure; boiling point; British Pharmacopoeia BPF bronchopleural fistula BPH Bachelor of Public Health BPH benign prostatic hyperplasia Bq becquerel (SI unit of radionuclide activity) Br bromine BRAT (diet) banana, rice cereal, applesauce, toast BS, BSc Bachelor of Science (Baccalaureus Scientiae) BSA body surface area BSE breast self-examination BSER brainstem evoked response (audiometry) BSN Bachelor of Science in Nursing BSO bilateral salpingooophorectomy BT bleeding time BTPS body temperature, ambient pressure, saturated (with water vapor) BTU British thermal unit BTX botulinum toxin BUN blood urea nitrogen BUS Bartholin glands, urethra, Skene glands BVMS Bachelor of Veterinary Medicine and Surgery Bx biopsy c calorie (small); capillary (blood); centi C calorie (large); carbon; Celsius; centigrade; clearance (rate, renal) C; compliance; concentration; cylindric(lens); cytidine c [L.] cum, with C&S culture and sensitivity C. cubic centimeter CCK cholecystokinin CCNU chloroethylcyclohexylnitrosourea (lomustine) CCU coronary care unit; critical care unit cd candela Cd cadmium CD compact disc CDA Certified Dental Assistant CDC (U.

S) Centers for Disease Control and Prevention c DNA complementary DNA CDP cytidine 5´ diphosphate Ce cerium CEA carcinoembryonic antigen; carotid endarterectomy CELO chicken embryo lethal orphan (virus) CEP congenital erythropoietic porphyria CEU continuing education unit Cf californium CF complement fixation; cystic fibrosis; coupling factor CG chorionic gonadotropin CGA catabolite gene activator c GMP cyclic guanosine monophosphate cgs, CGS centimeter-gramsecond (system, unit) Ch1 Christchurch (chromosome) Ch B Bachelor of Surgery (Chirurgiae Baccalaureus) Ch D, Chir Doct Doctor of Surgery (Chirurgiae Doctor) CHF congestive heart failure Ch M Master of Surgery (Chirurgiae Magister) CHO carbohydrate Ci curie CI color index; Colour Index; confidence interval CIE counterimmunoelectrophoresis CIN cervical intraepithelial neoplasia CIQ cognitive laterality quotient CIU chronic idiopathic urticaria CJD Creutzfeldt-Jakob disease CK creatine kinase CK-MB creatine kinase MB isoenzyme Cl chlorine CL cardiolipin CLA(ASCP) Clinical Laboratory Assistant (American Society of Clinical Pathologists) CLIA Clinical Laboratory Improvement Amendments CLL chronic lymphocytic leukemia cm centimeter c M centimorgan Cm curium CMA Certified Medical Assistant CMC carpometacarpal CME continuing medical education CMI cell mediated immunity CML chronic myelogenous leukemia CMO Chief Medical Officer CMP cytidine 5´ phosphate (or any cytidine monophosphate) CMT Certified Medical Transcriptionist CMV controlled mechanical ventilation; cytomegalovirus CNM Certified Nurse Midwife CNP Community Nurse Practitioner CNS central nervous system Co cobalt Co A coenzyme A COG center of gravity con A concanavalin A COPD chronic obstructive pulmonary disease COS Chief of Staff CP cerebral palsy; costophrenic CPAP continuous (or constant) positive airway pressure CPD cephalopelvic disproportion CPK creatine phosphokinase CPM continuous passive motility CPPB continuous (or constant) positive pressure breathing CPPV continuous positive pressure ventilation CPR cardiopulmonary resuscitation cps cycles per second CPT Current Procedural Terminology Cr chromium; creatinine CR Chief Resident; conditioned reflex; crown rump (length) CRD chronic respiratory disease CRH corticotropin releasing hormone CRL crown rump length CRNA Certified Registered Nurse Anesthetist CRNP Certified Registered Nurse Practitioner CRP cross reacting protein CRST calcinosis cutis, Raynaud phenomenon, sclerodactyly, and telangiectasia (syndrome) CRT Certified Respiratory Therapist Cs cesium CS cesarean section; Chief of Staff CSD catscratch disease CSF cerebrospinal fluid; colony-stimulating factor CT computed tomography CTP cytidine 5´ triphosphate CTR cardiothoracic ratio Cu [L.] cuprum, copper CV cardiovascular CVA cerebral vascular (cerebrovascular) accident, costovertebral angle CVP central venous pressure CVS cardiovascular system; chorionic villus sampling CXR chest x-ray Cyd cytidine cyl cylinder; cylindric (lens) CYP cytochrome P-450 (enzyme) Cys cysteine Cyt cytosine ?

Charges Prices assigned to units of medical service, such as a visit to a physician or a day in a hospital.

usan sex no reg-53

Certificate of Medical Necessity (CMN) A certificate that documents the medical necessity need of a piece of durable medical equipment, prosthetic and orthotic device or a replacement supply.

Change Request HCFA mechanism used for submitting a request to change, add, or delete functions within the operational Medicare system.

delta; change; heat d delta; heavy chain class corresponding to Ig D D & C dilatation and curettage D & E dilatation and evacuation D Dalton, dead (space gas) (SUBSCRIPT); deciduous; deuterium; diffusing (capacity); dihydrouridine (in nucleic acids); diopter; [L.] dexter, right (opposite of left); vitamin D potency of cod liver oil d deci-; day d deuterium d dextrorotatory D- prefix indicating that a molecule is sterically analogous to D glyceraldehyde da deca d A deoxyadenosine Da dalton DA developmental age d Ado deoxyadenosine d AMP deoxyadenylic acid DANS 1-dimethylaminonaphthalene 5 sulfonic acid db decibel d B decibel DC Dental Corps; Doctor of Chiropractic; direct current m D/C discharge; discontinue DCG dacryocystography DCh Doctor of Surgery (Doctor Chirurgiae) DCI dichloroisoproterenol d CMP deoxycytidylic acid DDS Doctor of Dental Surgery DDT dichlorodiphenyl trichloroethane (chlorophenothane) def decayed, extracted, or filled (deciduous teeth) DEF decayed, extracted, or filled (permanent teeth) DES diethylstilbestrol DET diethyltryptamine DEV duck embryo vaccine; duck embryo virus DEXA dual energy x-ray absorptiometry df decayed and filled (deciduous teeth) DF decayed and filled (permanent teeth) Df deficiency (absence or inactivation of a gene) d GMP deoxyguanosine monophosphate (deoxyguanylic acid) DH Dental Hygienist DHEA dehydro-3-epiandrosterone DIC disseminated intravascular coagulation DIF direct immunofluorescence DIP desquamative interstitial pneumonia; distal interphalangeal (joint) DJD degenerative joint disease dk deca-, deka DKA diabetic ketoacidosis d L deciliter d M decimorgan DM diabetes mellitus DMARD disease-modifying antirheumatic drug DMD Doctor of Dental Medicine; Duchenne muscular dystrophy DME Director of Medical Education dmf decayed, missing, or filled (deciduous teeth) DMF decayed, missing, or filled (permanent teeth) DMSO dimethyl sulfoxide DMT N, N dimethyltryptamine DMV Doctor of Veterinary Medicine DN dibucaine number DNA deoxyribonucleic acid DNB Diplomate of the National Board (of Medical Examiners) DNE Director of Nursing Education; Doctor of Nursing Education DNP deoxyribonucleoprotein; 2,4 dinitrophenol DNR do not resuscitate DNS Director of Nursing Service(s) DO Doctor of Osteopathy DOA dead on arrival DOB date of birth DOC deoxycholic acid; deoxycorticosterone DOE dyspnea on exertion DOM 2,5-dimethoxy-4- methylamphetamine DON Director of Nursing DOT directly observed therapy DP Doctor of Pharmacy; Doctor of Podiatry Dp duplication of a gene or chromosomal segment 2,3 DPG 2,3 diphosphoglycerate DPH Doctor of Public Health; Doctor of Public Hygiene DPharm Doctor of Pharmacy DPI dry powder inhaler DPM Doctor of Physical Medicine; Doctor of Podiatric Medicine DPN diphosphopyridine nucleotide DPT dipropyltryptamine; diphtheria, pertussis, and tetanus (vaccines) dr dram DR degeneration reaction, reaction of degeneration Dr Med Doctor of Medicine DRE digital rectal examination DRG diagnosis-related group Dr PH Doctor of Public Health; Doctor of Public Hygiene DRVVT dilute Russell viper venom test D-S Doerfler Stewart (test) DSA digital subtraction angiography DSc Doctor of Science DSD dry sterile dressing ds DNA double-stranded DNA DSM Diagnostic and Statistical Manual of Mental Disorders of the American Psychiatric Association d T deoxythymidine DT delirium tremens; duration of tetany d TDP deoxythymidine 5 diphosphate d Thd thymidine DTIC dimethyltrizenoimidazole carboxamide (dacarbazine) d TMP deoxythymidylic acid DTP diphtheria and tetanus toxoids and pertussis vaccine; distal tingling on percussion (Tinel sign) DTPA diethylenetriamine pentaacetic acid DTR deep tendon reflex d TTP deoxythymidine 5´ triphosphate DVM Doctor of Veterinary Medicine DVT deep vein thrombosis Dx diagnosis Dy dysprosium e epsilon; molar absorption coefficient; heavy chain class corresponding to Ig E E exa ; extraction (ratio) EB Epstein Barr (virus) EBV Epstein Barr virus ECF extended care facility; extracellular fluid ECF-A eosinophilic chemotactic factor of anaphylaxis ECG electrocardiogram ECHO enterocytopathogenic human orphan (virus) ECM erythema chronicum migrans ECMO extracorporeal membrane oxygenation ECS electrocerebral silence ECT electroconvulsive therapy ED eating disorder; effective dose; emergency department; erectile dysfunction EDC expected date of confinement recipe, (the first word on a prescription), take; prescription; treatment EDTA ethylenediaminetetraacetic acid (edathamil, edetic acid) EEG electroencephalogram EENT eye, ear, nose, and throat EIA enzyme immunoassay EKG [German] Elektrokardiogramme, electrocardiogram EKY electrokymogram ELISA enzyme-linked immunosorbent assay EMC encephalomyocarditis (virus) EMF electromotive force EMG electromyogram; exomphalos, macroglossia, and gigantism (syndrome) EMS eosinophilia-myalgia syndrome EMT Emergency Medical Technician ENG electronystagmography ENT ear, nose, and throat EOG electrooculography EOM extraocular muscle(s) EPAP expiratory positive airway pressure EPO erythropoietin ER endoplasmic reticulum; emergency room Er erbium ERBF effective renal blood flow ERCP endoscopic retrograde cholangiopancreatography ERG electroretinogram ERPF effective renal plasma flow ERT estrogen replacement therapy ERV expiratory reserve volume Es einsteinium ESEP extreme somatosensory evoked potential ESP extrasensory perception ESR electron spin resonance; erythrocyte sedimentation rate ESRD end stage renal disease ESWL extracorporeal shockwave lithotripsy Et OH ethyl alcohol Eu europium ev electron volt e V electron volt F Fahrenheit; faraday (constant); fertility (factor); field (of vision); fluorine; force; fractional (concentration); free (energy) f femto-; (respiratory) frequency F1 first filial generation F1.2 (prothrombin) fragment 1.2 FAAN Fellow of the American Academy of Nursing FAAP Fellow of the American Academy of Pediatrics Fab fragment of antibody molecule involved in antigen binding FACA Fellow of the American College of Anesthesiology FACAL Fellow of the American College of Allergy FACC Fellow of the American College of Cardiologists FACD Fellow of the American College of Dentists FACFP Fellow of the American College of Family Physicians FACO Fellow of the American College of Otolaryngology FACOG Fellow of the American College of Obstetricians and Gynecologists FACOS Fellow of the American College of Orthopaedic Surgeons FACP Fellow of the American College of Physicians FACR Fellow of the American College of Radiology FACS Fellow of the American College of Surgeons FAD flavin(e) adenine dinucleotide; familial Alzheimer disease FAMA Fellow of the American Medical Association FANA fluorescent antinuclear antibody (test) FAP familial adenomatous polyposis FB foreign body FBS fasting blood sugar Fc constant fragment of an antibody molecule FDA (U.

S.) Food and Drug Administration Fe [L.] ferrum, iron FEF forced expiratory flow FET forced expiratory time FEV forced expiratory volume FF filtration fraction FFD focus film distance FHR fetal heart rate FHT fetal heart tones FIA fluorescent immunoassay FIGLU formiminoglutamic (acid) FISH fluorescent in situ hybridization Fm fermium FMN flavin(e) mononucleotide FNA fine-needle aspiration fps, FPS foot pound second (system, unit) Fr francium; French (gauge, scale) FRC functional residual capacity (of lungs) French (catheter gauge) FRF follicle stimulating hormone releasing factor FRS first rank symptom Fru fructose FSH follicle stimulating hormone FSH-RF follicle stimulating hormone releasing factor FSH-RH follicle stimulating hormone releasing hormone FTA-ABS fluorescent treponemal antibody absorption (test) FU fluorouracil F/U follow-up FUO fever of unknown origin FVC forced vital capacity Fw F wave (fibrillary wave, flutter wave) Fx fracture ?

ventilation; gas flow (frequently with subscripts indicating location and chemical species); ventilation; VA alveolar ventilation V . ventilation/perfusion ratio V1CV6 unipolar precordial electrocardiogram chest leads VA viral antigen V-A ventriculoatrial Val valine (and its radicals) VATER vertebral defects, imperforate anus, tracheoesophageal fistula with esophageal atresia, and radial and renal dysplasia (complex) VBAC vaginal birth after cesarean VC vision, color; vital capacity VCE vagina, (ecto)cervix, endocervical canal VD (physiologic) dead space VDRL Venereal Disease Research Laboratory (test) VHDL very high density lipoprotein VIP vasoactive intestinal polypeptide VLDL very low density lipoprotein VMA vanillylmandelic acid (test) Vmax maximal velocity VN Visiting Nurse, Vocational Nurse VO vocal order VP vasopressin VR vocal resonance VS vital signs; volumetric solution VT tidal volume VZIG varicella-zoster immune globulin W watt; [German] Wolfram, tungsten Wb weber WBC white blood cell; white blood (cell) count WC Ward Clerk WD well-developed WDLL well-differentiated lymphocytic (or lymphatic) lymphoma WEE western equine encephalomyelitis WHO World Health Organization WN well nourished WNV West Nile virus X xanthosine Xao xanthosine Xe xenon 133Xe xenon 133 XU excretory urogram Y yttrium YAG yttrium-aluminum-garnet (laser) Yb ytterbium Z carbobenzoxy (chloride) ZEEP zero end-expiratory pressure ZES Zollinger Ellison syndrome Zn zinc 65Zn zinc 65 Zr zirconium ZSR zeta sedimentation ratio Carrier A public or private insurance organization under contract with the Federal Government's Health Care Financing Administration to process claims and inquiries from physicians and suppliers of service.

Carrier Advisory Committee (CAC) A formal mechanism for: a) providers in a state to be informed of, and participate in, the development of medical policy in an advisory capacity; b) to discuss and improve administrative policies that are discretionary, and; c) for information exchange between the Medicare carrier, health care professionals and Medicare beneficiaries.

[L.] post cibum, after a meal PCB polychlorinated biphenyl Pco2 partial pressure of carbon dioxide PCP phencyclidine; plasma cell pneumonia (Pneumocystic carinii pneumonia), primary care provider PCR polymerase chain reaction PCT percutaneous transhepatic cholangiography PCWP pulmonary capillary wedge pressure Pd palladium PD prism diopter PDA patent ductus arteriosus; posterior descending artery PDGF platelet derived growth factor PDLL poorly differentiated lymphocytic lymphoma PDR Physicians’ Desk Reference PEEP positive end expiratory pressure PEG polyethylene glycol PET positron emission tomography PF4 platelet factor 4 PFT pulmonary function test pg picogram PG prostaglandin PGA prostaglandin A PGB prostaglandin B PGE prostaglandin E PGF prostaglandin F p H hydrogen ion concentration; p (power) of [H ]10 Ph phenyl Ph1 Philadelphia (chromosome) PHA phytohemagglutinin (antigen) Pharm D Doctor of Pharmacy (Pharmaciae Doctor) Ph D Doctor of Philosophy (Philosophiae Doctor) Ph D [L.] Philosophiae Doctor, Doctor of Philosophy Phe phenylalanine (or its radical) Ph G [L.] Pharmacopoeia Germanica, German Pharmacopeia Ph G Graduate in Pharmacy PHN Public Health Nurse; postherpetic neuralgia PICC peripherally inserted central catheter PID pelvic inflammatory disease PIF prolactin inhibiting factor PIP proximal interphalangeal (joint) p K negative logarithm of the ionization constant (Ka) of an acid PK pyruvate kinase PKU phenylketonuria pm picometer Pm promethium PM post mortem PMI point of maximum intensity PMN polymorphonuclear (leukocyte) PMS premenstrual syndrome PN Practical Nurse PND paroxysmal nocturnal dyspnea; postnasal drip PNP platelet neutralization procedure PNPB positive negative pressure breathing PNS peripheral nervous system Po polonium PO [L.] per os, by mouth PO2, Po2 partial pressure of oxygen POEMS polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes (syndrome) POMP prednisone, Oncovin (vincristine sulfate), methotrexate, and Purinethol (6-mercaptopurine) POR problem-oriented (medical) record PP pyrophosphate PPCA proserum prothrombin conversion accelerator PPD purified protein derivative (of tuberculin) PPLO pleuropneumonia like organism ppm parts per million PPO 2,5-diphenyloxazole PPPPP pain, pallor, pulselessness, paresthesia, paralysis PPPPPP pain, pallor, pulselessness, paresthesia, paralysis, prostration PPV positive pressure ventilation Pr praseodymium; presbyopia PR per rectum PRA plasma renin activity PRF prolactin releasing factor PRL prolactin p.r.n. [L.] quantum satis, as much as is enough; [L.] quantum sufficiat, as much as may suffice; quantity sufficient r racemic; roentgen R gas constant (8.315 joules); (organic) radical; Réamur (scale) ; [L.] recipe, take; resistance determinant (plasmid); resistance (electrical); resistance (unit) (in the cardiovascular system); resolution; respiration; respiratory (exchange ratio); roentgen Ra radium RA rheumatoid arthritis rad radian RAD reactive airways disease RAS reticular activating system RAST radioallergosorbent test RAV Rous-associated virus RAW resistance, airway Rb rubidium rbc red blood cell; red blood (cell) count RBC red blood cell; red blood (cell) count RBF renal blood flow RCM right costal margin RD reaction of degeneration; reaction of denervation; Registered Dietitian RDA recommended daily allowance RDH Registered Dental Hygienist r DNA ribosomal DNA RDS respiratory distress syndrome RDW red (blood cell) diameter (or distribution) width Re rhenium RE right ear; right eye rem roentgen equivalent, man REM rapid eye movement (sleep); reticular erythematous mucinosis rep roentgen equivalent, physical RF release factor; rheumatoid factor RFA right frontoanterior (fetal position) RFLP restriction fragment length polymorphism RFP right frontoposterior (fetal position) RFT right frontotransverse (fetal position) Rh Rhesus (Rh blood group); rhodium RH releasing hormone RIA radioimmunoassay Rib ribose RLL right lower lobe RLQ right lower quadrant RMA right mentoanterior (fetal position) RML right middle lobe RMP right mentoposterior (fetal position) RMT right mentotransverse (fetal position) Rn radon RN Registered Nurse RNA Registered Nurse Anesthetist; ribonucleic acid RNase ribonuclease RNC Registered Nurse, Certified RNP Registered Nurse Practitioner RNP ribonucleoprotein R/O rule out ROA right occipitoanterior (fetal position) ROM range of motion ROP right occipitoposterior (fetal position) ROS review of systems ROT right occipitotransverse (fetal position) RP retinitis pigmentosa RP Registered Pharmacist RPF renal plasma flow RPh Registered Pharmacist rpm revolutions per minute RPR rapid plasma reagin (test) RQ respiratory quotient r RNA ribosomal RNA RR relative risk RRR relative risk reduction Rs resolution RS respiratory syncytial (virus) RSA right sacroanterior (fetal position) RSD reflex sympathetic dystrophy RSP right sacroposterior (fetal position) RST right sacrotransverse (fetal position) RSV Rous sarcoma virus; respiratory syncytial virus RT Radiologic Technologist; Registered Technologist; Respiratory Therapist RTE renal tubular epithelium r TMP ribothymidylic acid Ru ruthenium RUL right upper lobe RUQ right upper quadrant RV residual volume; right ventricle RVEF right ventricular ejection fraction RVH right ventricular hypertrophy s sigma; reflection coefficient; standard deviation; 1 millisecond (0.001 sec) s [L.] semis, half; steady state (SUBSCRIPT); [L.] sinister, left s sine, without s/s signs and symptoms S [L.] sinister, left; saturation of hemoglobin (percentage of) (followed by subscript o2 or co2); siemens; spheric; spheric (lens); sulfur; Svedberg (unit) S1 first selfing generation SA sinuatrial S-A sinuatrial SAD seasonal affective disorder Sa O2 oxygen saturation (of) arterial (oxyhemoglobin) SARS severe acute respiratory syndrome Sb [L.] stibium, antimony SBE subacute bacterial endocarditis sc subcutaneous(ly) Sc scandium SC sternoclavicular; subcutaneous(ly) Sc D Doctor of Science SCID severe combined immunodeficiency SD standard deviation; streptodornase SDA specific dynamic action Se selenium Ser serine SERM selective estrogen receptor modulator Sf Svedberg flotation (constant, unit) SGA small for gestational age SGOT serum glutamicoxaloacetic transaminase (aspartate aminotransferase) SGPT serum glutamic-pyruvic transaminase (alanine aminotransferase) SH serum hepatitis SI [French] Système International d’Unités; International System of Units Si silicon SID source-to-image (-receptor) distance SIDS sudden infant death syndrome sig. subspecies SSRI selective serotonin reuptake inhibitor ST scapulothoracic stat; STAT [L.] statim, immediately, at once STD sexually transmitted disease STEL short term exposure limit STH somatotropic hormone STI sexually transmitted infection STM short-term memory STPD standard temperature (0º C) and pressure (760 mm Hg absolute), dry STS serologic test for syphilis Sv sievert (unit) SV sievert (unit) SVT supraventricular tachycardia Sz seizure t metric ton t temperature (Celsius); tritium T temperature, absolute (Kelvin); tension (intraocular); tera ; tesla; tetanus (toxoid); tidal (volume) (SUBSCRIPT); tocopherol; transverse (tubule); tritium; tumor (antigen) T absolute temperature (Kelvin) T! three times a week TKO to keep (venous infusion line) open Tl thallium TLC thin layer chromatography; total lung capacity; tender, loving care TLV threshold-limit value tm temperature midpoint (Celsius) Tm temperature midpoint (Kelvin) Tm thulium; tubular maximal (excretory capacity of kidneys) TM transport maximum TMJ temporomandibular joint TMP ribothymidine 5´ monophosphate TMT tarsometatarsal TMV tobacco mosaic virus Tn (ocular) tension; (intraocular) tension normal TNF tumor necrosis factor TNM tumor, node, metastasis (tumor staging) TORCH toxoplasmosis, other, rubella, cytomegalovirus, and herpes simplex (maternal infections) t-PA, TPA tissue plasminogen activator TPHA Treponema pallidum hemagglutination (test) TPI Treponema pallidum immobilization (test) TPN total parenteral nutrition TPR temperature, pulse, and respirations tr.

PRN, [L.] pro re nata, as needed Pro proline (or its radicals) PROM passive range of motion; premature rupture of membranes psi pounds per square inch PSV pressure-supported ventilation PT physical therapy; prothrombin time Pt platinum PTA plasma thromboplastin antecedent; phosphotungstic acid; prior to admission PTAH phosphotungstic acid hematoxylin PTCA percutaneous transluminal coronary angioplasty PTH parathyroid hormone PTT partial thromboplastin time PTU prophylthiouracil Pu plutonium PUO pyrexia of unknown origin PUPPP pruritic urticarial papules and plaques of pregnancy PUVA (oral administration of) psoralen (and subsequent exposure to) ultraviolet light of A wavelength (UV A) PVC polyvinyl chloride; premature ventricular contraction PVL plasma viral load PVP polyvinylpyrrolidone (povidone) q [L.] quisque, every Q coulomb; volume of blood flow Qco2 microliters CO2 given off per milligram of dryweight of tissue per hour mq.d. [L.] quater in die, four times a day QNS quantity not sufficient Qo oxygen consumption Qo2 oxygen consumption mq.o.d. [L.] signa, affix a label, inscribe SIMV spontaneous intermittent mandatory ventilation; synchronized intermittent mandatory ventilation SIRD source-to-image-receptor distance SISI small increment (or short increment) sensitivity index (test) SK streptokinase SL sublingual(ly) SLE systemic lupus erythematosus SLR straight leg raising Sm samarium SMS Senior Medical Student Sn [L.] stannum, tin SN Student Nurse SOAP subjective data, objective data, assessment, and plan (problem oriented medical record) SOB short(ness) of breath sol. decreased tension (pressure) T increased tension (pressure) T3 3,5,5´ triiodothyronine T4 tetraiodothyronine (thyroxine) T & A tonsillectomy and adenoidectomy T & C type and crossmatch Ta tantalum TA Terminologia Anatomica tab tablet TAC transient aplastic crisis TAD transient acantholytic dermatosis TAF tumor angiogenesis factor TAH total abdominal hysterectomy TAR thrombocytopenia with absent radii (syndrome) TAT thematic apperception test Tb terbium TB tuberculosis TBG thyroid-binding globulin TBP thyroxine-binding protein TBV total blood volume Tc technetium 99m Tc technetium 99m TCA tricarboxylic acid; trichloracetic acid TCN talocalcaneonavicular (joint) Td tetanus-diphtheria (toxoids, adult type) TDP ribothymidine 5´ diphosphate Te tellurium TEDD total end-diastolic diameter TEN toxic epidermal necrolysis TESD total end-systolic diameter TFCI transient focal cerebral ischemia Th thorium THC tetrahydrocannabinol Thr threonine (or its radicals) Ti titanium ti/ttot duty cycle TIA transient ischemic attack TIBC total iron-binding capacity t.i.d. tincture TRH thyrotropin releasing hormone (stimulation test) TRIC trachoma inclusion conjunctivitis (organism) t RNA transfer RNA Trp tryptophan (and its radicals) TSH thyroid stimulating hormone TSS toxic shock syndrome TSTA tumor-specific transplantation antigen TTP thrombotic thrombocytopenic purpura TU toxic unit, toxin unit TUR transurethral resection TVUS transvaginal ultrasound Tx treatment Tyr tyrosine (and its radicals) U uranium; uridine (in polymers); urinary (concentration) m U unit UA urinalysis UDP uridine diphosphate UDPG uridine diphosphate glucose UGIS upper gastrointestinal series UMP uridine monophosphate (uridylic acid) u-PA urokinase UPJ ureteropelvic junction Urd uridine URI upper respiratory infection US ultrasound USAN United States Adopted Names (Council) USP United States Pharmacopeia USPHS United States Public Health Service UTI urinary tract infection UTP uridine triphosphate UV ultraviolet UVB ultraviolet B UVJ ureterovesical junction v venous (blood); volt V vanadium; vision; visual (acuity); volt; volume (frequently with subscripts denoting location, chemical species, and conditions) V .

[L.] ante cibum, before a meal A: G R albumin globulin ratio Ab antibody AB abortion ABG arterial blood gas ABI ankle-brachial index abl Abelson murine leukemia virus ABLB alternate binaural loudness balance (test) ABO blood group system ABR abortus Bang ring (test); auditory brainstem response (audiometry) g-Abu-g aminobutyric acid ABVD Adriamycin (doxorubicin), bleomycin, vinblastine, and dacarbazine ac acetyl a.c.

[L.] ante cibum, before a meal a C arabinosylcytosine Ac acetyl; actinium AC acetate; acromioclavicular; air conduction; alternating current; atriocarotid AC: A accommodation convergence accommodation (ratio) ACE angiotension converting enzyme ACEI angiotensin converting enzyme inhibitor Ac G accelerator globulin ac-g accelerator globulin ACh, Ach acetylcholine a CL anticardiolipin (antibody) ACP acyl carrier protein ACTH adrenocorticotropic hormone (corticotropin) AD Alzheimer disease m AD [L.] auris dextra, right ear ADD attention deficit disorder ad lib.

Carriers Responsible for handling Medicare claims for services by physicians, suppliers, and other health care practitioners covered under Part B of the Medicare program. Case Management The process by which all health related matters of a case are managed by a physician or nurse or designated components of health care, such as appropriate referral to consultants, specialists, hospitals, ancillary providers and services.