19 results
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... cut-offs defined in clinical ... >90% (In most clinical ... Galactomannan #Fungal #Testing ... #FalsePositives
Invasive Aspergillus (IA) - Diagnosis and Management
Aspergillus is ubiquitous in nature. Most invasive infections are caused
infections are caused ... HIV/AIDS, CGD) Clinical ... Diagnosis and Testing ... Galactomannan sensitivity ... associated with low sensitivity
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
dermatidis • Sensitivity ... cut-offs defined in clinical ... : Mucorales • Sensitivity ... disease - Sensitivity ... Frozen ice-pops (in setting
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
therapy - Number one cause ... -> Serological Testing ... Fungal (Histoplasma/Aspergillus ... -> Serological Testing ... Diagnosis #Management #Algorithm
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... : • Androgen insensitivity ... Functional (e.g. eating ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
should be based on clinical ... present in 15% of cases ... Demyelinating disease caused ... of serum CrAg testing ... comparable to CSF testing
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... Clinical suspicion ... Weakness, fatigue, nausea ... , hypoglycemia Testing ... Differential #Diagnosis #Algorithm
Hypoglycemia - Differential Diagnosis Algorithm
Fasting Hypoglycemia:
 • Excess Insulin
 • Medications (e.g. Insulin Secretagogues, ß-Adrenergic Antagonists,
Differential Diagnosis Algorithm ... Idiopathic Other Causes ... : • Critical Illness ... Differential #Diagnosis #Algorithm ... endocrinology #causes
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
individual studies Clinical ... Proves cause-effect ... diseases, describe clinical ... Sensitivity (rule ... PPV Higher sensitivity
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
brain PRES Clinical ... sequences improve sensitivity ... thrombosis Testing ... the underlying cause ... with AEDs until cause