12 results
Spirometry - PFT Interpretation Algorithm

- BWH Medicine Chiefs @BrighamChiefs

#Spirometry #PFTs #Interpretation #Algorithm #diagnosis #differential #pulmonary #function
Algorithm - ... #Algorithm #diagnosis ... #differential # ... pulmonary #function ... #testing
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Diagnosis Algorithm ... Hypokalemic periodic paralysis ... GI losses (NG suction ... vomiting) • Low
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... have almost 100% specificity ... for AI (but low ... require Cosyntropin testing ... Step 3) Differentiate
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... arrhythmias and paralysis ... consumption • Low ... #differential # ... potassium #nephrology #low
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Secondary Amenorrhea - Differential ... Diagnosis Algorithm ... FSH, Low estrogen ... : • Functional ... (e.g. eating disorder
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 ... Sensitivity Specificity ... clinical situations, low ... in BAL does not differentiate ... FalsePositives #Laboratory
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Primary Amenorrhea - Differential ... Diagnosis Algorithm ... Etiology - High FSH, Low ... Hypothalamic: • Functional ... (e.g. eating disorder
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
has higher specificity ... more time for the laboratory ... including liver function ... chest wall, and low ... Rheumatoid #Arthritis #laboratory
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Hypokalemia - Differential ... Diagnosis Algorithm ... Vomiting • NG suction ... Hypokalemia #Nephrology #Differential ... #Diagnosis #Algorithm
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
urine Na/Cl > 1.6, low ... confirmed via genetic testing ... in most cases; interpretation ... dependent upon local laboratory ... hypokalemia #diagnosis #differential