Medical Term Glossary

Review NCLEX language, priority cues, memory hooks, and related body systems for common medical terms.

Medical term glossary

Search NCLEX language by body system, category, related condition, or priority cue.

Showing 119 term cards

needs review

ABC priority

Assessment

needs-review
RespCardiacNeuro

Airway, breathing, and circulation are checked before routine teaching, comfort, or documentation.

NCLEX focus

  • Choose the option that protects oxygenation or perfusion first when the client is unstable.

Memory hook

  • Airway first, then breathing, then circulation.

Acute change

Assessment

needs-review
NeuroCardiacResp

A new or sudden finding that may indicate deterioration.

NCLEX focus

  • Unexpected new findings usually outrank chronic stable problems.

Memory hook

  • New, sudden, or worsening is test language.

Bruit

Assessment

needs-review
CardiacRenal

A whooshing vascular sound heard with a stethoscope.

NCLEX focus

  • A bruit can signal turbulent flow; do not deeply palpate a suspected aneurysm.

Memory hook

  • Bruit means turbulent blood.

Capillary refill

Assessment

needs-review
CardiacPedsSkin

A quick bedside check of peripheral perfusion after blanching a nail bed or skin.

NCLEX focus

  • Delayed refill supports poor perfusion, shock, dehydration, or neurovascular compromise concerns.

Memory hook

  • Slow pink-up means poor flow.

Droplet precautions

Infection control

needs-review
IDRespPeds

Isolation used for infections spread by large respiratory droplets.

NCLEX focus

  • Mask and correct room/procedure policy matter for meningitis, pertussis, influenza-like illness, and selected pediatric airway infections.

Memory hook

  • Droplets need a mask.

Exudate

Assessment

needs-review
SkinID

Fluid draining from a wound, lesion, or inflamed tissue.

NCLEX focus

  • Purulent, foul, increasing, or bloody drainage changes wound priority.

Memory hook

  • Drainage quality tells the story.

Hematuria

Assessment

needs-review
RenalHeme

Blood in the urine.

NCLEX focus

  • Think renal calculi, glomerular inflammation, trauma, infection, anticoagulants, or malignancy depending on context.

Memory hook

  • Blood in urine needs source and stability check.

Immunosuppression

Infection control

needs-review
HemeIDAuto/Gen

Reduced immune response from disease or treatment.

NCLEX focus

  • Fever may be the only infection sign; infection prevention and early escalation matter.

Memory hook

  • Weak immune system hides infection.

Murmur

Assessment

needs-review
CardiacPedsOB

An extra or unusual heart sound caused by turbulent blood flow.

NCLEX focus

  • A new murmur with fever, chest pain, syncope, poor feeding, or heart failure signs is priority.

Memory hook

  • New murmur plus symptoms is not routine.

Neurovascular check

Assessment

needs-review
MSKSkinCardiac

Assessment of pulse, color, temperature, capillary refill, movement, sensation, pain, and swelling.

NCLEX focus

  • Use after trauma, casts, burns, vascular procedures, or possible compartment syndrome.

Memory hook

  • Pain, pulse, pallor, paresthesia, paralysis, pressure.

Petechiae

Assessment

needs-review
HemeIDCardiac

Tiny pinpoint red or purple spots from capillary bleeding.

NCLEX focus

  • Consider low platelets, sepsis, meningococcemia, endocarditis, or bleeding disorder context.

Memory hook

  • Tiny dots can signal bleeding or sepsis.

Retractions

Assessment

needs-review
RespPeds

Skin pulling in around ribs, sternum, or neck during breathing.

NCLEX focus

  • Retractions indicate increased work of breathing and are a priority pediatric respiratory cue.

Memory hook

  • Pulling skin means working hard to breathe.

ABC

Assessment

abbreviationneeds-review
RespCardiacNeuro
Airway, breathing, circulationABC priority

Priority framework for checking oxygenation and perfusion before routine care.

NCLEX focus

  • Pick the action that protects airway, breathing, or circulation first when the client is unstable.

Memory hook

  • Air first, then breathing, then circulation.

ABG

Labs/diagnostics

abbreviationneeds-review
RespRenal
Arterial blood gaspHPaCO2HCO3

Blood test pattern used to interpret oxygenation, ventilation, and acid-base status.

NCLEX focus

  • Use pH, PaCO2, and HCO3 to identify acidosis or alkalosis and decide whether respiratory status is priority.

Memory hook

  • ROME: respiratory opposite, metabolic equal.

ADL

Assessment

abbreviationneeds-review
NeuroMSKPsych
Activities of daily living

Basic self-care tasks such as bathing, dressing, toileting, eating, and mobility.

NCLEX focus

  • ADL decline supports safety, fall-risk, discharge planning, and functional baseline questions.

Memory hook

  • Needs review.

ANC

Labs/diagnostics

abbreviationneeds-review
HemeID
Absolute neutrophil count

Estimate of infection-fighting neutrophils in the blood.

NCLEX focus

  • Low ANC points to neutropenic precautions and urgent fever evaluation.

Memory hook

  • Low ANC means infection can hide.

AV block

Patho

abbreviationneeds-review
Cardiac
Atrioventricular blockHeart block

Delayed or blocked electrical conduction between atria and ventricles.

NCLEX focus

  • Bradycardia with hypotension, syncope, chest pain, or altered mental status is a priority.

Memory hook

  • Needs review.

BID

Med safety

abbreviationneeds-review
PsychCardiacEndo
Twice daily

Medication timing instruction meaning two doses per day.

NCLEX focus

  • Clarify unsafe or confusing timing; do not assume a dose interval when the order is ambiguous.

Memory hook

  • Needs review.

CAD

Patho

abbreviationneeds-review
Cardiac
Coronary artery diseaseAtherosclerotic heart disease

Narrowed coronary arteries reduce oxygen supply to the heart muscle.

NCLEX focus

  • Chest pain, diaphoresis, dyspnea, ECG changes, or elevated troponin can become emergency cues.

Memory hook

  • Needs review.

CBC

Labs/diagnostics

abbreviationneeds-review
HemeID
Complete blood countHgbHctWBCPlatelets

Lab panel that screens red cells, white cells, hemoglobin, hematocrit, and platelets.

NCLEX focus

  • Connect abnormal CBC patterns to bleeding, infection risk, oxygen-carrying capacity, and transfusion precautions.

Memory hook

  • Needs review.

CHF

Patho

abbreviationneeds-review
CardiacRespRenal
Congestive heart failureHFHeart failure

Heart pump problem that can cause fluid overload and poor perfusion.

NCLEX focus

  • Daily weight, lung sounds, edema, oxygenation, urine output, and diuretic safety are common cues.

Memory hook

  • Needs review.

CKD

Patho

abbreviationneeds-review
RenalHemeCardiac
Chronic kidney diseaseChronic renal failure

Long-term kidney function decline that affects electrolytes, fluid balance, anemia, and medication clearance.

NCLEX focus

  • Watch potassium, fluid overload, anemia, access safety, and renally cleared medications.

Memory hook

  • Needs review.

COPD

Patho

abbreviationneeds-review
Resp
Chronic obstructive pulmonary disease

Chronic airflow limitation that can impair gas exchange and increase CO2 retention risk.

NCLEX focus

  • Assess work of breathing, oxygen saturation, mental status, ABGs, infection cues, and medication response.

Memory hook

  • Needs review.

CPR

Procedure

abbreviationneeds-review
CardiacResp
Cardiopulmonary resuscitationBasic life supportBLS

Emergency compressions and ventilation support used when breathing or circulation fails.

NCLEX focus

  • Unresponsive, pulseless, or not breathing normally requires emergency response and high-quality compressions.

Memory hook

  • Needs review.

DKA

Patho

abbreviationneeds-review
EndoRenal
Diabetic ketoacidosis

Insulin deficiency causing hyperglycemia, ketones, dehydration, and metabolic acidosis.

NCLEX focus

  • Fluids, potassium, insulin safety, neuro status, and acid-base changes are priority cues.

Memory hook

  • Needs review.

ECG / EKG

Labs/diagnostics

abbreviationneeds-review
CardiacRenal
ElectrocardiogramECGEKG

Heart rhythm tracing used to assess rate, rhythm, ischemia, and conduction problems.

NCLEX focus

  • Connect rhythm changes to symptoms, perfusion, electrolyte problems, and medication safety.

Memory hook

  • Needs review.

EVD

Procedure

abbreviationneeds-review
Neuro
External ventricular drainVentriculostomy

Device that drains CSF and monitors pressure in selected neuro clients.

NCLEX focus

  • Leveling, clamping rules, drainage changes, infection signs, and neuro decline are priority safety cues.

Memory hook

  • Needs review.

GBS

Infection control

abbreviationneeds-review
OBIDPeds
Group B StreptococcusGroup B strep

Bacteria screened in pregnancy because newborn infection risk can be serious.

NCLEX focus

  • Know screening, intrapartum antibiotics when indicated, and newborn infection cues.

Memory hook

  • Needs review.

H&H

Labs/diagnostics

abbreviationneeds-review
HemeCardiac
Hemoglobin and hematocritHgbHct

Measures oxygen-carrying red blood cell status and blood concentration.

NCLEX focus

  • Low values can signal anemia or bleeding; rapid drop with symptoms is a priority cue.

Memory hook

  • Needs review.

HbA1c

Labs/diagnostics

abbreviationneeds-review
Endo
Hemoglobin A1cA1C

Blood test reflecting average blood glucose over the past few months.

NCLEX focus

  • Use for diabetes control teaching, not for immediate hypoglycemia treatment decisions.

Memory hook

  • Needs review.

HLHS

Patho

abbreviationneeds-review
OBCardiacPeds
Hypoplastic left heart syndromeHypoplastic left heart

Critical congenital heart defect where left-sided heart structures are underdeveloped.

NCLEX focus

  • Cyanosis, poor perfusion, feeding difficulty, prostaglandin infusion, and ductal closure risk are priority cues.

Memory hook

  • Needs review.

ICP

Patho

abbreviationneeds-review
Neuro
Intracranial pressure

Pressure inside the skull that can threaten brain perfusion when elevated.

NCLEX focus

  • Declining LOC, pupil change, vomiting, severe headache, posturing, or Cushing response are priority cues.

Memory hook

  • Needs review.

LOC

Assessment

abbreviationneeds-review
NeuroRespCardiacEndo
Level of consciousness

How awake, oriented, and responsive a client is.

NCLEX focus

  • A new change in LOC is a priority neuro, oxygenation, perfusion, glucose, or infection cue.

Memory hook

  • Needs review.

MI

Patho

abbreviationneeds-review
Cardiac
Myocardial infarctionHeart attack

Heart muscle injury from inadequate blood flow.

NCLEX focus

  • Chest pain, ECG changes, troponin, oxygenation, aspirin/nitro safety, and rapid escalation are testable.

Memory hook

  • Needs review.

MS

Patho

abbreviationneeds-review
NeuroAuto/Gen
Multiple sclerosis

Autoimmune demyelinating disorder affecting central nervous system signaling.

NCLEX focus

  • Fatigue, heat sensitivity, weakness, vision changes, safety, and flare management are common cues.

Memory hook

  • Needs review.

NG / OG

Procedure

abbreviationneeds-review
GIRespPeds
Nasogastric or orogastric tubeNG tubeOG tube

Tube through the nose or mouth into the stomach for decompression, feeding, or medication delivery.

NCLEX focus

  • Verify placement per policy, protect airway, monitor output, and report respiratory distress or abdominal change.

Memory hook

  • Needs review.

NPO

Procedure

abbreviationneeds-review
GINeuroResp
Nothing by mouth

Order to withhold oral food, fluids, or medications unless specifically allowed.

NCLEX focus

  • Use for aspiration prevention, procedures, bowel rest, and pre-op safety; clarify medication exceptions.

Memory hook

  • Needs review.

NSAID

Med safety

abbreviationneeds-review
GIRenalHeme
Nonsteroidal anti-inflammatory drugIbuprofenNaproxen

Pain and inflammation medication class with kidney, GI bleeding, and platelet-risk concerns.

NCLEX focus

  • Question NSAIDs with kidney disease, GI bleed risk, anticoagulants, severe asthma sensitivity, or late pregnancy concerns.

Memory hook

  • Needs review.

PRN

Med safety

abbreviationneeds-review
PsychMSKResp
As needed

Medication or intervention given only when ordered criteria are met.

NCLEX focus

  • Assess need, timing, dose limit, contraindications, and response before repeating PRN medications.

Memory hook

  • Needs review.

RSV

Infection control

abbreviationneeds-review
PedsRespID
Respiratory syncytial virusBronchiolitis

Viral respiratory infection that can cause serious illness in infants and high-risk clients.

NCLEX focus

  • Work of breathing, feeding, hydration, suctioning, isolation, and oxygenation are priority cues.

Memory hook

  • Needs review.

SCD

Patho

abbreviationneeds-review
HemeAuto/GenPeds
Sickle cell diseaseSickle cell anemia

Inherited red blood cell disorder with vaso-occlusion, anemia, pain crises, and infection risk.

NCLEX focus

  • Hydration, oxygenation, pain control, infection prevention, and spleen-related fever cues are testable.

Memory hook

  • Needs review.

SpO2

Assessment

abbreviationneeds-review
RespCardiacPeds
Peripheral oxygen saturationPulse oxOxygen saturation

Noninvasive estimate of oxygen saturation from pulse oximetry.

NCLEX focus

  • Interpret with work of breathing, color, mental status, perfusion, and ordered oxygen parameters.

Memory hook

  • Needs review.

STEMI

Patho

abbreviationneeds-review
Cardiac
ST-elevation myocardial infarction

Heart attack pattern with ST elevation on ECG, often requiring rapid reperfusion pathway activation.

NCLEX focus

  • Chest pain plus ECG changes is a rapid-response, oxygenation/perfusion, medication-safety, and cath-lab timing issue.

Memory hook

  • Needs review.

TIA

Patho

abbreviationneeds-review
NeuroCardiac
Transient ischemic attackMini-stroke

Temporary stroke-like neurologic symptoms from interrupted blood flow.

NCLEX focus

  • Treat sudden neuro deficits as time-sensitive stroke warnings even if symptoms improve.

Memory hook

  • Needs review.

TPN

Med safety

abbreviationneeds-review
GIEndoID
Total parenteral nutrition

IV nutrition given through a central line when the gut cannot meet nutrition needs.

NCLEX focus

  • Central-line infection, glucose changes, pump use, tubing changes, and abrupt-stop hypoglycemia are testable.

Memory hook

  • Needs review.

UTI

Infection control

abbreviationneeds-review
RenalID
Urinary tract infection

Infection in the urinary tract.

NCLEX focus

  • Burning, frequency, fever, flank pain, confusion in older adults, and sepsis cues change priority.

Memory hook

  • Needs review.

VRE

Infection control

abbreviationneeds-review
ID
Vancomycin-resistant enterococci

Drug-resistant bacteria requiring facility-specific isolation and hygiene precautions.

NCLEX focus

  • Use contact precautions, hand hygiene, dedicated equipment, and antibiotic-stewardship awareness.

Memory hook

  • Needs review.

WBC

Labs/diagnostics

abbreviationneeds-review
HemeID
White blood cell count

Blood count that helps screen infection, inflammation, immune suppression, or blood cancer patterns.

NCLEX focus

  • High or low WBC must be interpreted with fever, ANC, source of infection, steroids, and cancer treatment.

Memory hook

  • Needs review.

Vitamin C

Teaching

needs-review
HemeSkinGI
Ascorbic acid

Water-soluble vitamin needed for collagen formation, wound healing, immune support, and iron absorption.

NCLEX focus

  • Deficiency causes scurvy cues such as bleeding gums and poor wound healing; vitamin C can improve non-heme iron absorption.

Memory hook

  • C is collagen.

Vitamin D

Labs/diagnostics

needs-review
EndoMSKRenal
CholecalciferolErgocalciferol

Fat-soluble vitamin/hormone important for calcium absorption and bone health.

NCLEX focus

  • Deficiency links to rickets in children and osteomalacia in adults; excess can contribute to hypercalcemia.

Memory hook

  • D drives calcium into bone.

Vitamin B12

Labs/diagnostics

needs-review
HemeNeuroGI
Cobalamin

Water-soluble vitamin needed for red blood cell production and neurologic function.

NCLEX focus

  • Low B12 can cause megaloblastic anemia plus neurologic findings; risk rises with intrinsic-factor problems, vegan diet, metformin, and long-term acid suppression.

Memory hook

  • B12 builds blood and nerves.

Folate

Teaching

needs-review
HemeOBNeuro
Folic acidVitamin B9

Water-soluble B vitamin needed for DNA synthesis and fetal neural tube development.

NCLEX focus

  • Pregnancy teaching emphasizes adequate folic acid before and during early pregnancy; deficiency can cause megaloblastic anemia.

Memory hook

  • Folate for fetal neural tube and fast-growing cells.

Iron

Labs/diagnostics

needs-review
HemeOBPeds

Mineral needed to make hemoglobin and carry oxygen.

NCLEX focus

  • Iron deficiency links to fatigue and anemia; vitamin C helps absorption, while calcium/antacids can reduce absorption timing.

Memory hook

  • Iron carries oxygen.

Fat-soluble vitamins

Teaching

needs-review
GIEndoHeme
A D E K

Vitamins A, D, E, and K are absorbed with fat and can be stored in the body.

NCLEX focus

  • Storage makes toxicity more testable than with most water-soluble vitamins; malabsorption or orlistat can reduce levels.

Memory hook

  • ADEK rides with fat.

Orlistat and fat-soluble vitamins

Med safety

needs-review
GIEndoHeme

Orlistat reduces fat absorption and can reduce absorption of vitamins A, D, E, and K.

NCLEX focus

  • Teach separated multivitamin timing as ordered and monitor for fat-soluble vitamin deficiency risks.

Memory hook

  • Needs review.

Protein energy malnutrition

Assessment

needs-review
GIPedsHeme
PEMprotein-calorie malnutrition

Malnutrition pattern caused by inadequate protein and/or calorie intake or use.

NCLEX focus

  • Assess weight/growth trends, edema, muscle wasting, wounds, infection risk, intake history, food access, and refeeding risk.

Memory hook

  • PEM affects protein, energy, muscle, and edema.

Riboflavin

Teaching

needs-review
GISkin
Vitamin B2

Water-soluble B vitamin used as a coenzyme in energy release.

NCLEX focus

  • Deficiency cues include cheilosis, glossitis, and dermatitis around ears, nose, or mouth.

Memory hook

  • B2 cracks lips and reddens tongue when low.

Vitamin A

Teaching

needs-review
Eye/EarSkinOB
RetinolBeta-carotene

Fat-soluble vitamin needed for vision, tissue integrity, growth, embryonic development, and immune function.

NCLEX focus

  • Deficiency links to eye findings such as xerophthalmia; excess retinoid supplementation can be toxic and some forms are teratogenic.

Memory hook

  • A is for acuity and airway/skin barriers.

Zinc

Teaching

needs-review
SkinHemePeds
Zn

Trace mineral important for immune function, wound healing, DNA synthesis, growth, and development.

NCLEX focus

  • Deficiency can impair wound healing and immunity; high-dose zinc can contribute to copper deficiency.

Memory hook

  • Zinc for immune repair and wounds.

Albumin

Labs/diagnostics

needs-review
GIRenalSkin

Major blood protein made by the liver that helps maintain oncotic pressure.

NCLEX focus

  • Low albumin can be associated with edema and poor healing, but it is not nutrition-specific; interpret with illness, liver, kidney, inflammation, and fluid status.

Memory hook

  • Albumin anchors fluid in vessels.

Ferritin

Labs/diagnostics

needs-review
HemeOBPeds

Iron storage protein used as part of iron deficiency and anemia workups.

NCLEX focus

  • Low ferritin supports iron deficiency, but inflammation can raise ferritin; interpret with CBC, iron studies, bleeding history, and pregnancy/growth needs.

Memory hook

  • Ferritin is the iron pantry.

Prealbumin

Labs/diagnostics

needs-review
GISkin
Transthyretin

Shorter half-life protein marker sometimes trended in nutrition assessment.

NCLEX focus

  • Interpret with the whole clinical picture; inflammation and organ function can distort nutrition interpretation.

Memory hook

  • Prealbumin changes faster, not perfectly.

Refeeding risk

Assessment

needs-review
GICardiacRenal
refeeding syndrome risk

Potential dangerous electrolyte and fluid shifts when nutrition is restarted after severe malnutrition or starvation.

NCLEX focus

  • Monitor phosphorus, potassium, magnesium, glucose, vitals, cardiac status, edema, and prescribed thiamin when refeeding risk is present.

Memory hook

  • Restart nutrition slowly when stores are empty.

Cheilosis

Assessment

needs-review
SkinGI

Scaling or cracking of the lips and mouth corners.

NCLEX focus

  • Can be a deficiency cue, including riboflavin deficiency; assess diet and mucous membranes.

Memory hook

  • Cracked corners can cue B-vitamin deficiency.

Glossitis

Assessment

needs-review
GIHeme

Inflamed, smooth, or swollen tongue.

NCLEX focus

  • Can appear with B-vitamin deficiencies or anemia; assess nutrition, swallowing, pain, and CBC/B12/folate when ordered.

Memory hook

  • Glossitis is a tongue cue.

Methotrexate and folate

Med safety

needs-review
HemeAuto/Gen

Methotrexate interferes with folate pathways.

NCLEX focus

  • Leucovorin rescue may be ordered after high-dose methotrexate; do not self-start folate supplements without provider direction.

Memory hook

  • Methotrexate messes with folate.