Daily clinical reasoning series

February 2026

28 case-based clinical reasoning analyses assigned to the daily casebook sequence for February 2026.

Case-series dates · February 1, 2026 to February 28, 2026

Read Painful Swelling Around a Prosthetic Joint
JT-CR-124 · Musculoskeletal, sports, and rehabilitation

Series

Painful Swelling Around a Prosthetic Joint

Distinguishing prosthetic-joint infection from aseptic failure and coordinating aspiration, cultures, surgery, and antimicrobial timing.

prosthetic joint infectionarthroplastyjoint aspiration
Read Acute Continuous Vertigo and Vomiting
JT-CR-125 · Men's health and urology

Series

Acute Continuous Vertigo and Vomiting

Distinguishing vestibular neuritis from posterior circulation stroke while respecting bedside-exam and early-imaging limitations.

acute vestibular syndromeposterior strokeHINTS
Read Gestational Diabetes Across Pregnancy and Postpartum
JT-CR-126 · Reproductive and postpartum care

Series

Gestational Diabetes Across Pregnancy and Postpartum

Connecting gestational diabetes testing, fetal and maternal risk, treatment escalation, delivery planning, and postpartum prevention.

gestational diabetespregnancyglucose monitoring
Read A Red, Exquisitely Tender First Toe Joint
JT-CR-127 · Musculoskeletal, sports, and rehabilitation

Series

A Red, Exquisitely Tender First Toe Joint

Distinguishing gout from septic arthritis, trauma, CPPD, and cellulitis while interpreting crystals and comorbidity.

goutseptic arthritispodagra
Read Food Restriction, Bradycardia, and Dizziness
JT-CR-128 · Children and adolescent health

Series

Food Restriction, Bradycardia, and Dizziness

Recognizing medical instability in restrictive eating, preventing refeeding harm, and balancing confidentiality with family-supported safety.

eating disorderbradycardiarefeeding syndrome
Read CKD With Acidosis and Bone-Mineral Abnormalities
JT-CR-129 · Kidney, electrolytes, and digestive health

Series

CKD With Acidosis and Bone-Mineral Abnormalities

Integrating CKD progression, metabolic acidosis, potassium, phosphate, PTH, bone risk, medicines, and referral decisions.

chronic kidney diseasemetabolic acidosisCKD-MBD
Read Painless Jaundice and Weight Loss
JT-CR-130 · Kidney, electrolytes, and digestive health

Series

Painless Jaundice and Weight Loss

Evaluating pancreatic and biliary obstruction through cholestatic patterns, staged imaging, tissue strategy, drainage, and resectability.

painless jaundicepancreatic cancerbiliary obstruction
Read Infant Eczema With Crusting and Feeding Restrictions
JT-CR-131 · Children and adolescent health

Series

Infant Eczema With Crusting and Feeding Restrictions

Treating infected eczema and barrier failure while correcting unsupported food avoidance and protecting infant nutrition.

infant eczemaatopic dermatitisimpetigo
Read Coughing During Meals in Advanced Cognitive Disease
JT-CR-132 · Aging and palliative care

Series

Coughing During Meals in Advanced Cognitive Disease

Evaluating dysphagia and aspiration while addressing reversible factors, feeding support, comfort, and goals in advanced cognitive disease.

dysphagiadementiaaspiration
Read Falling Platelets After Heparin Exposure
JT-CR-133 · Cancer, blood, infection, and immunity

Series

Falling Platelets After Heparin Exposure

Applying HIT probability, stopping all heparin, selecting alternative anticoagulation, and interpreting immunoassay and functional tests.

heparin-induced thrombocytopeniathrombocytopenia4Ts score
Read Progressive Dyspnea With Interstitial Opacities
JT-CR-134 · Lung and sleep health

Series

Progressive Dyspnea With Interstitial Opacities

Integrating exposure, autoimmune, physiologic, and HRCT data to classify interstitial lung disease before treatment.

interstitial lung diseaseHRCThypersensitivity pneumonitis
Read A Critical Result Released to the Portal Before Follow-Up
JT-CR-135 · Medicines and care safety

Series

A Critical Result Released to the Portal Before Follow-Up

Designing result ownership, urgent outreach, portal communication, escalation, and audit after a critical finding reaches the patient first.

critical resultspatient portalclosed loop
Read Sudden Severe Scrotal Pain and Suspected Torsion
JT-CR-136 · Men's health and urology

Series

Sudden Severe Scrotal Pain and Suspected Torsion

Prioritizing testicular torsion over epididymitis, hernia, trauma, and other causes when ultrasound could delay salvage.

testicular torsionacute scrotumepididymitis
Read Palpitations and Breathlessness During Pregnancy
JT-CR-137 · Reproductive and postpartum care

Series

Palpitations and Breathlessness During Pregnancy

Separating physiologic pregnancy change from arrhythmia, anemia, thyroid disease, pulmonary embolism, and peripartum cardiomyopathy.

pregnancypalpitationsdyspnea
Read New Proximal Weakness During Statin Therapy
JT-CR-138 · Musculoskeletal, sports, and rehabilitation

Series

New Proximal Weakness During Statin Therapy

Distinguishing common statin muscle symptoms from rhabdomyolysis, immune necrotizing myopathy, endocrine disease, and deconditioning.

statin myopathyproximal weaknesscreatine kinase
Read A Toddler Refusing Fluids During Gastroenteritis
JT-CR-139 · Children and adolescent health

Series

A Toddler Refusing Fluids During Gastroenteritis

Grading dehydration, delivering oral or nasogastric rehydration, identifying dangerous mimics, and setting safe discharge criteria.

gastroenteritisdehydrationoral rehydration
Read Headache and Visual-Field Loss With a Pituitary Mass
JT-CR-140 · Men's health and urology

Series

Headache and Visual-Field Loss With a Pituitary Mass

Protecting vision and adrenal function while characterizing a pituitary mass, hormone excess or deficiency, and surgical urgency.

pituitary massvisual field lossadrenal insufficiency
Read Recurrent Diarrhea After C. difficile Treatment
JT-CR-141 · Cancer, blood, infection, and immunity

Series

Recurrent Diarrhea After C. difficile Treatment

Distinguishing recurrent C. difficile infection from colonization, post-infectious symptoms, and other diarrhea while applying stewardship.

C. difficilerecurrent diarrheacolonization
Read Acute Facial Weakness With Ear Pain
JT-CR-142 · Men's health and urology

Series

Acute Facial Weakness With Ear Pain

Separating Bell palsy from stroke, Ramsay Hunt syndrome, Lyme disease, otologic infection, and other facial-nerve causes.

facial palsyBell palsyRamsay Hunt
Read Postmenopausal Bleeding Requiring Timely Endometrial Evaluation
JT-CR-143 · Reproductive and postpartum care

Series

Postmenopausal Bleeding Requiring Timely Endometrial Evaluation

Evaluating endometrial cancer risk with ultrasound and biopsy while ensuring persistent or recurrent bleeding reaches definitive follow-up.

postmenopausal bleedingendometrial cancertransvaginal ultrasound
Read Back Pain, Fever, and Injection Drug Use
JT-CR-144 · Emergency and acute care

Series

Back Pain, Fever, and Injection Drug Use

Recognizing spinal epidural abscess and vertebral infection through neurologic examination, cultures, MRI, and rapid source control.

spinal epidural abscessback painfever
Read Dependence on Long-Term Prescribed Benzodiazepines
JT-CR-145 · Mental, behavioral, and substance-use health

Series

Dependence on Long-Term Prescribed Benzodiazepines

Distinguishing physiologic dependence from use disorder and building an individualized taper around withdrawal, co-use, and anxiety.

benzodiazepinesdependencewithdrawal
Read Persistent Hoarseness in a Smoker
JT-CR-146 · Cancer, blood, infection, and immunity

Series

Persistent Hoarseness in a Smoker

Escalating persistent dysphonia to laryngeal visualization while considering malignancy, vocal-fold dysfunction, reflux assumptions, and airway risk.

hoarsenesslaryngeal cancerlaryngoscopy
Read Frailty Before Major Elective Surgery
JT-CR-147 · Aging and palliative care

Series

Frailty Before Major Elective Surgery

Using frailty, cognition, function, medication, goals, and prehabilitation to improve elective-surgery decisions beyond age alone.

frailtyelective surgeryprehabilitation
Read Smoke Inhalation With a Normal Pulse-Oximeter Reading
JT-CR-148 · Emergency and acute care

Series

Smoke Inhalation With a Normal Pulse-Oximeter Reading

Recognizing carbon monoxide, cyanide, delayed airway edema, and lower-airway injury despite deceptively normal pulse oximetry.

smoke inhalationcarbon monoxidecyanide
Read Abdominal Pain Out of Proportion to Examination
JT-CR-149 · Heart and vascular care

Series

Abdominal Pain Out of Proportion to Examination

A high-risk abdominal pain analysis on early mesenteric ischemia, lactate limits, CTA, and time-sensitive revascularization.

mesenteric ischemiaabdominal painCT angiography
Read Exertional Breathlessness With a Harsh Systolic Murmur
JT-CR-150 · Heart and vascular care

Series

Exertional Breathlessness With a Harsh Systolic Murmur

A structured approach to suspected aortic stenosis, symptom attribution, echocardiography, severity, and timely valve referral.

aortic stenosissystolic murmurexertional dyspnea
Read Persistent Generalized Lymphadenopathy With Constitutional Symptoms
JT-CR-151 · Cancer, blood, infection, and immunity

Series

Persistent Generalized Lymphadenopathy With Constitutional Symptoms

A probability-led evaluation of generalized lymphadenopathy spanning infection, autoimmunity, malignancy, node choice, and biopsy.

lymphadenopathylymphomaHIV