18 results
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
test - High sensitivity ... negative if on low-gluten ... Celiac #Disease #Testing ... #Laboratory #Tests ... Diagnosis #Workup #Table
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Insufficiency Differential ... Diagnosis Algorithm ... Weakness, fatigue, nausea ... , hypoglycemia Testing ... insufficiency • Low
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... type 4) - Salt wasting ... #Diagnosis #Low ... #Potassium #Table ... Classification #Causes
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Amenorrhea - Differential ... Diagnosis Algorithm ... Etiology - High FSH, Low ... Functional (e.g. eating ... #Causes #OBGyn
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... sensitivity) ... require Cosyntropin testing ... Step 3) Differentiate ... - Low ACTH is
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... from other causes ... suggests extra-renal causes ... consumption • Low ... #differential #
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table ... Classification #Causes
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... Cerebral Salt Wasting ... #Hyponatremia #differential ... #diagnosis #table
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Amenorrhea - Differential ... Diagnosis Algorithm ... FSH, Low estrogen ... Functional (e.g. eating
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 ... clinical situations, low ... in BAL does not differentiate ... Galactomannan #Fungal #Testing ... FalsePositives #Laboratory