How to use this: open the walkthrough first and go at your own pace with the arrow keys or Next. Then try the Case Lab: move the sliders and watch the patient change, and work the cases. Use the tools bar at the top of each page to pause the animations, slow them down, have the text read aloud, or get a written description of each picture.
Module 1 Fluids and electrolytes
Where water goes wrong, and the electrolytes and acid-base numbers that tell you.
- Dehydration / hypovolemia
- Fluid overload
- Edema
- Hyponatremia
- Hypernatremia
- Hypokalemia
- Hyperkalemia
- Hypocalcemia
- Hypercalcemia
- Respiratory acidosis
- Respiratory alkalosis
- Metabolic acidosis
- Metabolic alkalosis
- Diabetic ketoacidosis
Module 2 Pathogens and immune disorders
How germs cause disease, and what happens when the immune system overreacts, attacks itself or fails.
- Bacterial, viral, fungal, parasitic infection
- Anaphylaxis
- Allergic asthma
- Transfusion reaction
- Rh disease of the newborn
- Post-strep glomerulonephritis
- TB skin test / contact dermatitis
- Lupus (SLE)
- Rheumatoid arthritis
- Transplant rejection
- Immunodeficiency
- HIV / AIDS
Module 3 Cell injury, inflammation and cancer
How cells adapt, get hurt and die, how inflammation works, and how cancer grows and spreads.
- Atrophy / hypertrophy / hyperplasia
- Metaplasia / dysplasia
- Ischemic cell injury
- Necrosis / gangrene
- Apoptosis
- Reperfusion injury
- Acute inflammation
- Chronic inflammation / granuloma
- Benign vs malignant tumors
- Metastasis
- Paraneoplastic syndromes
- Cancer cachexia
Module 4 Sepsis, shock, pain and wound healing
When the body cannot feed its tissues, why fever and pain happen, and how wounds close.
- Hypovolemic shock
- Cardiogenic shock
- Obstructive shock
- Septic shock / sepsis
- Anaphylactic shock
- Neurogenic shock
- DIC
- Multiple organ dysfunction
- Fever
- Acute and chronic pain
- Referred pain
- Neuropathic pain
- Wound healing / dehiscence / keloid
Module 5 Neurological disorders
Pressure in the skull, head injury, stroke, seizures, and the diseases of myelin, the NMJ and dying neurons.
- Increased ICP / Cushing triad
- Concussion
- Epidural hematoma
- Subdural hematoma
- Ischemic stroke
- Hemorrhagic stroke
- TIA
- Spinal cord injury
- Autonomic dysreflexia
- Seizures / epilepsy
- Meningitis
- Multiple sclerosis
- Guillain-Barré syndrome
- Myasthenia gravis
- Parkinson disease
- Alzheimer disease
- ALS
Module 6 Musculoskeletal and skin disorders, burns
Broken and weakened bones, sore joints, muscle and nerve problems, burns and skin disease.
- Fractures / compartment syndrome
- Osteoporosis
- Osteomalacia / rickets
- Osteomyelitis
- Osteoarthritis
- Rheumatoid arthritis
- Gout
- Duchenne muscular dystrophy
- Tetanus
- Botulism
- Carpal tunnel
- Herniated disc
- Burns
- Pressure injuries
- Psoriasis
- Eczema / contact dermatitis
- Basal cell, squamous cell, melanoma
Module 7 Genetic disorders
How a change in DNA becomes a disease, and how it passes through families.
- Huntington disease
- Marfan syndrome
- Familial hypercholesterolemia
- Cystic fibrosis
- Sickle cell disease
- Phenylketonuria (PKU)
- Hemophilia A
- Duchenne muscular dystrophy
- Color blindness
- Down syndrome (trisomy 21)
- Turner syndrome
- Klinefelter syndrome
- Cleft lip / palate
- Neural tube defects / spina bifida
Module 8 Endocrine disorders
Diabetes and its emergencies, ADH problems, thyroid, adrenal and growth hormone disorders.
- Type 1 diabetes
- Type 2 diabetes
- Hypoglycemia
- Diabetic ketoacidosis (DKA)
- HHS
- Diabetes insipidus
- SIADH
- Graves disease / hyperthyroidism
- Hashimoto / hypothyroidism
- Goiter
- Cushing syndrome
- Addison disease
- Acromegaly / gigantism
- PCOS
Module 9 Blood disorders and vascular disease
Anemias, too many cells, bleeding and clotting problems, and diseased vessels.
- Iron deficiency anemia
- B12 / folate deficiency
- Pernicious anemia
- Aplastic anemia
- Hemolytic anemia
- Sickle cell anemia
- Polycythemia
- Leukemia
- Lymphoma
- Thrombocytopenia
- Hemophilia
- DIC
- DVT / pulmonary embolism
- Atherosclerosis
- Hypertension
- Peripheral artery disease
- Venous insufficiency
- Aneurysm / dissection
Module 10 Cardiac disorders
Coronary disease and heart attack, heart failure, rhythm problems, valves and the heart's lining.
- Stable angina
- Unstable angina
- Myocardial infarction (STEMI / NSTEMI)
- Left-sided heart failure
- Right-sided heart failure
- HFrEF vs HFpEF
- Sinus tachycardia / bradycardia
- Atrial fibrillation
- Heart blocks
- Ventricular tachycardia / fibrillation
- Valve stenosis / regurgitation
- Pericarditis
- Cardiac tamponade
- Endocarditis
- Rheumatic heart disease
- Cardiomyopathy
Module 11 Renal and urinary disorders
Kidney injury, chronic kidney disease, glomerular disease, infection and stones.
- Prerenal AKI
- Acute tubular necrosis
- Postrenal AKI
- Chronic kidney disease
- Uremia
- Nephritic syndrome
- Nephrotic syndrome
- Cystitis / UTI
- Pyelonephritis
- Kidney stones
- Polycystic kidney disease
- Incontinence
Module 12 Respiratory disorders
Airways that narrow, alveoli that fill or break, and lungs that cannot move air or blood.
- Asthma
- Emphysema
- Chronic bronchitis
- Alpha-1 antitrypsin deficiency
- Pneumonia
- Tuberculosis
- Cystic fibrosis
- Pulmonary embolism
- Pneumothorax / tension pneumothorax
- Pleural effusion
- ARDS
- Lung cancer
- Respiratory failure
Module 13 Gastrointestinal disorders
From reflux and ulcers to bowel inflammation, malabsorption, the acute abdomen and the pancreas.
- Dysphagia
- GERD / Barrett esophagus
- Hiatal hernia
- Peptic ulcer disease
- Gastritis
- Crohn disease
- Ulcerative colitis
- IBS
- Celiac disease
- Lactose intolerance
- Diarrhea / constipation
- Appendicitis
- Bowel obstruction / ileus
- Diverticulitis
- Pancreatitis
- Colorectal cancer
Module 14 Liver, biliary and reproductive disorders
Jaundice, hepatitis, cirrhosis and gallstones, plus common female and male reproductive disorders.
- Jaundice (pre, hepatic, post)
- Hepatitis A, B, C
- Fatty liver (MASLD)
- Cirrhosis
- Portal hypertension / varices
- Ascites
- Hepatic encephalopathy
- Gallstones / cholecystitis
- PCOS
- Endometriosis
- PID / STIs
- Ectopic pregnancy
- Preeclampsia
- Breast cancer
- BPH
- Prostate cancer
- Testicular torsion