25 results
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
- Prolonged aPTT ... and Prolonged PT ... - Prolonged aPTT ... Coagulation #Abnormal #APTT ... #Laboratory #Hematology
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
Hypocalcemia Laboratory ... Serum levels of PTH ... disorders causing hypocalcemia ... #Laboratory #Levels ... Hyperparathyroidism #Diagnosis #Endocrinology
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Prothrombin Time (PT ... Thromboplastin Time (PTT ... Thromboplastin Time (PTT ... #PTT #Prothrombin ... Thromboplastin #laboratory
Effect of Anticoagulants on Coagulation Tests
PT / INR, aPTT, Anti-Xa Activity, Activated Clotting Time, Thrombin Time,
Coagulation Tests PT ... / INR, aPTT, Anti-Xa ... Testing #Diagnosis #Laboratory
Laboratory Evaluation of Hypocalcemia #Diagnosis #EM #IM #Evaluation #Workup #Hypocalcemia #PTH #Differential #Algorithm #Ddxof
Laboratory Evaluation ... of Hypocalcemia ... Evaluation #Workup #Hypocalcemia ... #PTH #Differential
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT ... /PTT • Low plasma ... venipuncture sites Laboratory ... /INR: ↑ • PTT: ... INR < 2.3 - APTT
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
GI. uterine) Laboratory ... 2B) • Normal PT ... INR • Normal aPTT
Hypercalcemia - Differential Diagnosis Algorithm
Primary Hyperparathyroidism
 • Adenoma
 • Hyperplasia
 • MEN 1 and 2A
Tertiary Hyperparathyroidism
Hypercalcemia - ... Hypocalciuria Hypercalcemia ... Other Familial Hypercalcemias ... Malignancy • PTH-Related ... Diagnosis #Algorithm #Endocrinology
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Algorithm Elevated PTH ... Hypocalciuric Hypercalcemia ... Low PTH: • Elevated ... Algorithm #causes #endocrinology
Hypercalcemia Workup and Differential Diagnosis Framework
1) Determine whether PTH-dependent
2) Assess for other hormonal causes
3) Assess for
Hypercalcemia Workup ... Determine whether PTH-dependent ... uw_IMresidency #Hypercalcemia ... Diagnosis #algorithm #endocrinology