27 results
Causes of Hypercalcemia
Hypercalcemia due to increased bone Ca2+ resorption:
 • Primary hyperparathyroidism, Malignancy, Pseudohyperparathyroidism, Renal failure,
Causes of Hypercalcemia ... Pseudohyperparathyroidism, Renal ... failure, Addison's ... diagnosis #calcium #high ... #endocrinology
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
Intake • Chronic Renal ... Failure • Stress ... Production • Renal ... Diagnosis #Algorithm #Endocrinology ... #Causes
Hypercalcemia - Differential Diagnosis Algorithm
Elevated PTH (High or normal):
 • Primary Hyperparathyroidism
 • Familial Hypocalciuric Hypercalcemia
Low
Hypercalcemia - ... Elevated PTH (High ... Tumors: Lung, SCC, renal ... Diagnosis #Algorithm #causes ... #endocrinology
Causes of Hypercalcemia
Parathyroid hormone–dependent
Primary hyperparathyroidism
Familial hypocalciuric hypercalcemia
Lithium-associated
Tertiary hyperparathyroidism
Genetic disorders (e.g., multiple endocrine neoplasia type 1 or
Causes of Hypercalcemia ... hormone–independent Renal ... failure, acute ... thyrotoxicosis, adrenal ... #Diagnosis #Endocrinology
Hyperuricemia - Differential Diagnosis Algorithm
Primary - Over-production
     • Increased turnover of nucleotides
Primary
Drug-induced • High ... Diabetic acidosis - Renal ... • Chronic renal ... failure • ... #causes
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... oxoproline) • Renal ... failure (acute ... Renal acidosis ... (with renal insufficiency
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
resistance Impaired Renal ... deficiency • Renal ... insufficiency/Failure ... Type IV RTA • Renal ... differential #diagnosis #causes
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
resistance Impaired Renal ... deficiency • Renal ... insufficiency/Failure ... Type IV RTA • Renal ... differential #diagnosis #causes
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Hemolysis • Marrow Failure ... Renal Disease, Liver ... Chronic Infection) High ... #Anemia #MCV #Classification
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
papilledema, heart failure ... eg, presence of renal ... : Renal artery stenosis ... Vasculitis • Endocrinologic ... Renal parenchymal