23 results
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Causes of Abnormal ... Prolonged Activated Partial ... Pre-analytical cause ... Jcortesizaguirr #Abnormal ... #Causes #diagnosis
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Chest Pain - Diagnosis ... life-threatening causes ... Initial workup: • EKG ... LET, lipase, PT. aPTT ... • Serial troponin
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
rhythm monitoring, Echocardiogram ... • Provoked (e.g ... screening, CBC, aPTT ... Workup #hematology #diagnosis ... #algorithm #hematology
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
- Differential Diagnosis ... Algorithm Bradyarrhythmia ... Escape Rhythm Abnormal ... #Differential #Diagnosis ... #Algorithm #causes
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
hemoglobin in arterial ... oxygen content of arterial ... blood loss) or abnormal ... #differential #diagnosis ... #causes #pathophysiology
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
- Differential Diagnosis ... Algorithm Unequal ... • Obstructive arterial ... Takayasu disease • Normal ... #Algorithm #causes
Wolff–Parkinson–White syndrome (WPW) is one of several disorders of the electrical system of the heart that
WPW is caused by ... presence of an abnormal ... pathway between the atria ... Pathophysiology #Diagnosis ... Cardiology #MedStudent #EKG
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
variants of both • Acral ... Treat primary cause ... INR < 2.3 - APTT ... #Coagulation #diagnosis ... #causes #treatment
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
- Differential Diagnosis ... Algorithm Face ... Distensae (striae ... #SkinChanges #normal ... #Algorithm #causes
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
(≥ 0.12s) with abnormal ... capture of the atria ... Differential Diagnosis ... arrhythmia • Atrial ... Complexes #PVCs #PVC #diagnosis