216 results
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea: • Anemia ... Metabolic Causes ... • Salicylate poisoning ... • Carbon monoxide ... poisoning Nervous
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
carboxyhæmoglobin - Carbon monoxide ... poisoning - ... • chronic anæmia ... - Sickle cell anemia ... #Differential #Causes
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic Causes ... Tamponade • Chronic: Anemia ... , Carbon monoxide ... poisoning, DKA, ... Acute #Chronic #Causes
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Concussion Other Causes ... Hypervitaminosis A • Carbon monoxide ... poisoning • Central ... retinopathy (sickle cell anemia ... ophthalmology #causes
Nail Pathologies - Findings in or Near Nails

Paronychia 

A superficial infection of the proximal and lateral
Systemic causes ... include diabetes, anemia ... Seen in arsenic poisoning ... chemotherapy, carbon monoxide ... poisoning, and
Carbon Monoxide Poisoning

Symptoms are non-specific:
 - Headache 90%
 - Nausea/vomiting 50%
 - Vertigo 50%
 - Altered
Carbon Monoxide ... Poisoning Symptoms ... Headache 90% - Nausea ... PeterboroughEM #Carbon #Monoxide ... #Poisoning #Toxicology
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
pressure, carbon monoxide ... poisoning • Mental ... glaucoma, SAH, carbon monoxide ... poisoning • Hypertension ... , anemia, febrile
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Thalassemia • Lead Poisoning ... • Anemia of Chronic ... Marrow Failure • Anemia ... Diagnosis #Algorithm #Causes
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Megaloblastic Anemia ... Microangiopathic hemolytic anemia ... Autoimmune hemolytic anemia ... abuse, Heavy metal poisoning ... interpretation #clinical #anemia
Pediatric Vomiting - Gastrointestinal and Systemic Causes - Differential Diagnosis Algorithm
Hepatobiliary:
 • Acute Hepatitis
 • Acute
Gastrointestinal and Systemic Causes ... Diabetes/ DKA • Uremia ... Radiation Sickness • Poisoning ... Antibiotics • Carbon Monoxide ... Diagnosis #Algorithm #Causes