56 results
Differentiating Features Between Central and Peripheral Cyanosis

Mechanism - Arterial destauration
Sites - Skin, mucous membrane of oral
Features Between Central ... Oxygen therapy - Pulmonary ... Arterial blood gas - pO2 ... #Cyanosis #Central ... Peripheral #Comparison #Signs
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
Central retinal ... Positive "spot sign ... MaimoUltrasound #CRAO #Central
92F w acute painless monocular vision loss. What's the diagnosis?

...

Central retinal artery occlusion (CRAO)! Retrobulbar "spot
Central retinal ... Retrobulbar "spot ... sign" with embolus ... CRAO #SpotSign #Central
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms 
Direct measurements
 ● Central venous pressure
measurements ● Central ... pressures (RA, RV) ● Pulmonary ... pressure (PAp) ● Pulmonary ... – CVP]/CO) ● Pulmonary ... x 13.4 x Hb x SaO2
Causes of Cyanosis - Differential Diagnosis Algorithm
Central Cyanosis due to pulmonary or cardiac causes
Methemoglobinemia 
Sulfhemoglobinemia
Methaemalbuminaemia
Pseudocyanosis

#Causes #Cyanosis
Differential Diagnosis Algorithm ... Central Cyanosis ... due to pulmonary ... Differential #Diagnosis #Algorithm
Severe Asthma Exacerbation
Signs of a Severe Asthma Exacerbation:
 • Vitals: ↑HR ↑RR ↓SpO2
 • High work
Exacerbation Signs ... Vitals: ↑HR ↑RR ↓SpO2 ... Asthma: • Volume control ... #CriticalCare #pulmonary
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Differential Diagnosis Algorithm ... lung disease • Pulmonary ... • Atelectasis Central ... Differential #Diagnosis #Algorithm ... #Causes #Pulmonary
Radiographic Signs of Lobar Collapse
General findings to look for:
 • Crowding of ribs near collapse
 •
Radiographic Signs ... Lobar Collapse General ... lobar #collapse #pulmonary ... #lung #signs #radiology
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
Noncardiac: • Pulmonary ... Rate Control • ... Rhythm Control ... Cardiology #Management #Algorithm
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
T4 → Possibly Central ... Hyperthyroidism → Signs ... high T4 +/- T3 → Central ... Hyperthyroidism #algorithm