9 results
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Gastrointestinal Evaluation ... • Additional laboratory ... Non-invasive testing ... endoscopy • Insufficient ... #workup #diagnosis
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Adrenal Insufficiency ... Diagnosis Algorithm ... - Evaluation of ... then go to stim testing ... primary AI - Low
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
between 8 and 9 AM - Low ... aldosterone - Low ... #Evaluation #laboratory ... #diagnosis #testing ... endocrinology #workup
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
calcium-b) • Laboratory ... • Immunologic Workup ... in >90% - Low ... 60-80% - Low ... sle #comparison #table
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
negative if on low-gluten ... Celiac #Disease #Testing ... #Laboratory #Tests ... #Diagnosis #Workup ... #Table
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... can be high or low ... Hypothyroidism, Adrenal Insufficiency ... Cerebral Salt Wasting ... differential #diagnosis #table
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preoperative Risk Evaluation ... event, follow ACC algorithm ... Orthopedic • Low ... surgery Stress Testing ... preoperative stress testing
6/02/2022 UPDATE: This assay is designed to detect non-variola orthopoxviruses, including monkeypox virus. It is not
should use this algorithm ... risk of smallpox –low ... specimens from low ... reference level Laboratory ... See table below