Key Takeaways

  • Diabetes mellitus Type 1 is autoimmune destruction of beta cells; Type 2 is insulin resistance, and both are tested frequently on the RMA exam
  • Hypertension is classified as Stage 1 (130-139/80-89) and Stage 2 (140+/90+) per AHA/ACC guidelines
  • COPD includes chronic bronchitis (productive cough) and emphysema (alveolar destruction) and is primarily caused by smoking
  • Hypothyroidism (low T3/T4, high TSH) causes fatigue, weight gain, and cold intolerance; hyperthyroidism causes the opposite symptoms
  • Anemia can be iron-deficiency, pernicious (B12 deficiency), sickle cell (inherited hemoglobin disorder), or aplastic (bone marrow failure)
  • Chronic kidney disease is classified into 5 stages based on GFR, with Stage 5 requiring dialysis or transplant
  • Common cancers tested include breast, lung, colorectal, prostate, and skin (basal cell, squamous cell, melanoma)
  • Autoimmune disorders (lupus, rheumatoid arthritis, multiple sclerosis) occur when the immune system attacks the body's own tissues
Last updated: February 2026

Common Diseases & Disorders

The RMA exam tests your understanding of common diseases and disorders, including their pathophysiology, signs and symptoms, diagnostic indicators, and basic treatment approaches. Medical assistants must recognize conditions to support physicians in patient care and education.


Cardiovascular Disorders

ConditionDescriptionKey Signs/Symptoms
HypertensionPersistent elevated blood pressure (>130/80)Often asymptomatic ("silent killer"); headache, dizziness in severe cases
Coronary artery disease (CAD)Atherosclerotic plaque narrows coronary arteriesChest pain (angina), shortness of breath, fatigue
Myocardial infarction (MI)Complete blockage of coronary artery; heart muscle deathCrushing chest pain, left arm/jaw pain, diaphoresis, nausea, dyspnea
Congestive heart failure (CHF)Heart cannot pump blood efficientlyEdema (peripheral/pulmonary), dyspnea, fatigue, weight gain
ArrhythmiasAbnormal heart rhythmPalpitations, dizziness, syncope, chest discomfort
Deep vein thrombosis (DVT)Blood clot in deep veins (usually legs)Unilateral leg swelling, warmth, redness, pain
Peripheral arterial diseaseReduced blood flow to extremitiesClaudication (leg pain with walking), cool/pale extremities, weak pulses

Blood Pressure Classification (AHA/ACC Guidelines)

CategorySystolic (mmHg)Diastolic (mmHg)
Normal< 120< 80
Elevated120-129< 80
Stage 1 Hypertension130-13980-89
Stage 2 Hypertension>= 140>= 90
Hypertensive Crisis> 180> 120

Endocrine Disorders

Diabetes Mellitus

FeatureType 1Type 2
CauseAutoimmune destruction of beta cellsInsulin resistance + beta cell dysfunction
OnsetUsually childhood/adolescenceUsually adults (increasingly in younger adults)
Insulin productionLittle to noneReduced or ineffective
TreatmentInsulin injections (required)Diet, exercise, oral medications, possibly insulin
Body habitusTypically normal or thinOften overweight or obese
Ketoacidosis riskHigh (DKA)Lower (can occur in severe illness)
% of cases~5-10%~90-95%

Key lab values for diabetes:

  • Fasting glucose: Normal < 100 mg/dL; Pre-diabetic 100-125 mg/dL; Diabetic >= 126 mg/dL
  • HbA1c (glycosylated hemoglobin): Normal < 5.7%; Pre-diabetic 5.7-6.4%; Diabetic >= 6.5%
  • Random glucose: Diabetic >= 200 mg/dL with symptoms

Thyroid Disorders

FeatureHypothyroidismHyperthyroidism
Thyroid hormonesLow T3, Low T4High T3, High T4
TSH levelHigh (pituitary tries to stimulate)Low (pituitary suppressed)
MetabolismSlowedIncreased
WeightWeight gainWeight loss
TemperatureCold intoleranceHeat intolerance
Heart rateBradycardiaTachycardia
SkinDry, coarseWarm, moist
EnergyFatigue, sluggishnessNervousness, tremors
Common causeHashimoto thyroiditisGraves disease

Respiratory Disorders

ConditionDescriptionKey Features
AsthmaChronic airway inflammation with reversible bronchoconstrictionWheezing, dyspnea, chest tightness; triggered by allergens, exercise, cold air
COPD -- Chronic bronchitisChronic inflammation of bronchi with excessive mucus productionProductive cough ("blue bloater"), dyspnea, cyanosis
COPD -- EmphysemaDestruction of alveolar walls reducing gas exchange surfaceBarrel chest ("pink puffer"), dyspnea on exertion, pursed-lip breathing
PneumoniaInfection of lung parenchyma (bacterial, viral, fungal)Fever, productive cough, chest pain, crackles/rales on auscultation
TuberculosisMycobacterium tuberculosis infectionNight sweats, weight loss, hemoptysis, positive PPD/TB skin test
Pulmonary embolismBlood clot lodges in pulmonary arterySudden dyspnea, chest pain, tachycardia; often from DVT

Gastrointestinal Disorders

ConditionDescriptionKey Features
GERDStomach acid refluxes into esophagusHeartburn, regurgitation, dysphagia; worse after meals and lying down
Peptic ulcer diseaseErosion of stomach or duodenal liningEpigastric pain; often caused by H. pylori or NSAID use
Crohn's diseaseInflammatory bowel disease affecting any GI segmentAbdominal pain, diarrhea, weight loss, skip lesions
Ulcerative colitisInflammatory bowel disease affecting colon/rectum onlyBloody diarrhea, abdominal cramps, continuous inflammation
HepatitisLiver inflammation (A -- fecal-oral; B -- blood/body fluids; C -- blood)Jaundice, fatigue, dark urine, elevated liver enzymes
Gallstones (cholelithiasis)Hardened deposits in gallbladderRight upper quadrant pain (especially after fatty meals), nausea

Musculoskeletal Disorders

ConditionDescriptionKey Features
OsteoarthritisDegenerative joint disease; cartilage breakdownPain worse with activity, joint stiffness, crepitus; commonly in knees, hips, hands
Rheumatoid arthritisAutoimmune; synovial membrane inflammationMorning stiffness > 1 hour, bilateral joint involvement, fatigue
OsteoporosisLoss of bone density and massSilent until fracture; risk factors include post-menopausal women, low calcium
FibromyalgiaChronic widespread pain with tender pointsFatigue, sleep disturbances, widespread musculoskeletal pain

Renal/Urinary Disorders

ConditionDescriptionKey Features
Urinary tract infection (UTI)Bacterial infection of urinary tractDysuria, frequency, urgency, cloudy/foul-smelling urine; E. coli most common
Kidney stones (nephrolithiasis)Mineral crystals form in kidneysSevere flank pain (renal colic), hematuria, nausea
Chronic kidney diseaseProgressive loss of kidney functionStaged by GFR; Stage 5 (GFR < 15) requires dialysis
Acute renal failureSudden loss of kidney functionOliguria, elevated BUN/creatinine, electrolyte imbalances
Test Your Knowledge

A patient with Type 2 diabetes has a fasting blood glucose of 145 mg/dL. This value is classified as:

A
B
C
D
Test Your Knowledge

A patient presents with cold intolerance, weight gain, fatigue, and dry skin. These symptoms are most consistent with:

A
B
C
D
Test Your Knowledge

Which blood pressure reading would be classified as Stage 2 hypertension?

A
B
C
D
Test Your Knowledge

Which type of hepatitis is transmitted through the fecal-oral route?

A
B
C
D
Test Your Knowledge

A patient with COPD who has a barrel-shaped chest and uses pursed-lip breathing is most likely exhibiting signs of:

A
B
C
D
Test Your KnowledgeFill in the Blank

An HbA1c of ___% or higher indicates a diagnosis of diabetes mellitus.

Type your answer below

Test Your KnowledgeMatching

Match each endocrine disorder with its distinguishing characteristic.

Match each item on the left with the correct item on the right

1
Type 1 Diabetes
2
Type 2 Diabetes
3
Hypothyroidism
4
Hyperthyroidism
5
Cushing syndrome
6
Addison disease