31 results
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
although hepatic causes ... namely, the many causes ... - Inherited Urea ... of ammonia: - Urease ... deficiency #Ammonia #Pathophysiology
Lower Urinary Tract Infections: Complications
 - Infection damages the urinary tract epithelium causing fibroblast proliferation and
Prostatitis - Urease-producing ... Klebsiella) degrade urea ... which may cause ... UrinaryTractInfection #LUTI #Pathophysiology
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
hyalinization causes ... white or yellow areas ... around atrophic areas ... #Retinopathy #pathophysiology ... #ophthalmology
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
- Metastatic (breast ... Unilateral #Bilateral #Causes ... #ophthalmology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
• Tumor (Lung, Breast ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Persistent Pupillary Membrane (PPM) on Slit Lamp Ocular Examination

This membrane would be a remainder of the
large enough to cause ... PhysicalExam #clinical #video ... #ophthalmology ... #SlitLamp
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
Hemorrhages • Focal areas ... retinal ischemia causes ... Retinopathy #Diabetes #ophthalmology ... complications #pathophysiology
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
sudden-onset shortness of breath ... neck (shown in video ... and spaces can cause ... travels from these areas ... in subcutaneous areas
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
into contiguous areas ... postauricular crease ... hearing loss, nausea ... #Mastoiditis #pathophysiology
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
a stroke that caused ... recovery after breast ... will eventually break ... FrozenShoulder #pathophysiology