22 results
Pulmonary Function Testing: Flow Volume Loop Patterns
 • Variable extra-thoracic obstruction - truncated or flattened inspiratory
Pulmonary Function ... Testing: Flow Volume Loop ... and persevered FEV1 ... nickmmark #FlowVolume ... PFTs #patterns #diagnosis
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Algorithm - Evaluation ... of primary OR secondary ... normal adrenal function ... suggests EITHER primary ... ACTH: - High = primary
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
and Primary Causes ... == Primary Skin ... Urticaria == No Primary ... Mellitus Liver Function ... #Pruritus #primary
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
- Differential Diagnosis ... Algorithm - Urinary ... Remote use of loop ... Vomiting/nasogastric suction ... #urinary #chloride
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... - Differential Diagnosis ... Algorithm Volume ... Vomiting, NGT suction ... Liddle syndrome #Primary
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
- Differential Diagnosis ... Algorithm Extra-renal ... secreting tumor, Primary ... • HTN Absent: Loop ... #Algorithm #causes
Approach to Elevated Bicarbonate (HCO3)
Risk Factors for Hypercapnea? (Hx of COPD, OSA, sedative use, CNS/muscular disorders?)
(+)
Remote Diuretics - Loop ... Mineralocorticoid • Primary ... Recent Diuretics - Loop ... metabolic #alkalosis #algorithm ... #diagnosis
Pulmonary Function Test (PFT) Interpretation Algorithm

Approach to PFTs:
1) Look at Flow-Volume Loop if available
2) FEV1/FVC <
Pulmonary Function ... Interpretation Algorithm ... at Flow-Volume Loop ... available 2) FEV1 ... #diagnosis
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... - Differential Diagnosis ... Algorithm Volume ... Vomiting, NGT suction ... #Algorithm #Nephrology
Causes of Urinary Tract Obstruction - Differential Diagnosis Algorithm
Upper Tract - Bladder NOT distended on ultrasound,
Causes of Urinary ... - Differential Diagnosis ... Algorithm Upper ... Ureteropelvic junction ... #Algorithm #Causes