41 results
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... levofloxacin, ofloxacin, poppy ... seeds, poppy oil ... Rate of False Positives ... naproxen and modern tests
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
) - Diagnostic Algorithm ... specific, so if positive ... Check pregnancy test ... affects diagnostic workup ... #Workup #Endocrinology
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... on Drug Tests ... on drug tests? ... (Benadryl) • Poppy ... #drug #tests #differential
Evaluating a Patient with Presumed Cushing Syndrome

#Cushings #Syndrome #Disease #Algorithm #Workup #Dexamethasone #Suppression #Test #diagnosis
Syndrome #Disease #Algorithm ... #Workup #Dexamethasone ... #Suppression #Test
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... test (posterior ... or supine roll test ... test Méniére's ... Dizziness #Vertigo #Algorithm
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
Additional laboratory tests ... chronic kidney tests ... Test for celiac ... if serology is positive ... Gastrointestinal #Evaluation #workup
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... Abnormal Coagulation Tests ... DrEricStrong #Algorithm ... Hematology #Diagnosis #Workup
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Differential Diagnosis Algorithm ... Diabetes Insipidus Workup ... & desmopressin test ... Hypernatremia #Management #Algorithm
Approach to the neonate with jaundice

#Diagnosis #Peds #Pediatrics #Neonatal #Jaundice #Algorithm #Differential #Workup

** GrepMed Recommended Text:
Neonatal #Jaundice #Algorithm ... #Differential #Workup ... GrepMed Recommended Text
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic Algorithm ... Hemolytic #Anemia #Algorithm ... Differential #Causes #Workup ... GrepMed Recommended Text