The pairs nursing students mix up most
The conditions, labs, and drugs nursing students mix up most — Crohn's vs. ulcerative colitis, DKA vs. HHS, hypo- vs. hypernatremia, and more — each with a side-by-side comparison table and a free game to drill the difference. The comparison tables are free to read. The interactive games — Swipe Right and Speed Sort — drill the difference until it's automatic.
Crohn's Disease vs Ulcerative Colitis
The two inflammatory bowel diseases that look alike on an exam but differ in location, pattern, and complications.
DKA vs HHS
Two diabetic emergencies with overlapping labs but different mechanisms, ketones, and management.
Hyponatremia vs Hypernatremia
Low vs high sodium — opposite neuro signs and opposite correction, easy to reverse under pressure.
Hypokalemia vs Hyperkalemia
Low vs high potassium — mirror-image ECG changes and interventions that must not be swapped.
Hypothyroidism vs Hyperthyroidism
Everything-slow vs everything-fast — a high-frequency endocrine discrimination.
Addison's Disease vs Cushing's Syndrome
Too little vs too much cortisol — the adrenal opposites.
SIADH vs Diabetes Insipidus
Water retained vs water lost — opposite urine, opposite sodium, constantly mixed up.
Type 1 Diabetes vs Type 2 Diabetes
Autoimmune destruction vs insulin resistance — onset, treatment, and DKA risk differ.
Ischemic Stroke vs Hemorrhagic Stroke
Clot vs bleed — the treatment is literally opposite, and getting it wrong is fatal.
Left-Sided Heart Failure vs Right-Sided Heart Failure
Lungs vs body — where the fluid backs up tells you which side failed.
Asthma vs COPD
Reversible vs irreversible airway disease — similar wheeze, different management.
Delirium vs Dementia vs Depression
The "3 Ds" — acute vs chronic vs treatable, a classic geriatric trap.
Anorexia Nervosa vs Bulimia Nervosa
Restriction vs binge-purge — different body weight, labs, and complications.
Atrial Fibrillation vs Atrial Flutter
Irregular chaos vs organized sawtooth — rate, rhythm, and stroke risk compared.
DVT vs Pulmonary Embolism
Clot in the leg vs clot in the lung — one can become the other.
Cholecystitis vs Pancreatitis
Gallbladder vs pancreas — pain location, labs, and diet differ.
Placenta Previa vs Placental Abruption
Painless vs painful bleeding — the OB emergency discrimination.
Nephrotic Syndrome vs Nephritic Syndrome
Protein loss vs inflammatory damage — two-letter difference, opposite urinalysis.
Hypocalcemia vs Hypercalcemia
Trousseau and Chvostek vs lethargy and stones — opposite calcium, opposite excitability.
GERD vs Peptic Ulcer Disease
Acid in the esophagus vs acid in the stomach/duodenum — overlapping burning pain.
Drill every confused pair as a game
Sign up free to play Swipe Right and Speed Sort across all of these comparisons — plus the full 3,400+ question NCLEX bank.