12 results
Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
Shock Classification ... and Differential ... CO / High SVR, JVP ... Sophia_Hayes_MD #Shock #Classification ... #Differential #
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... excess - Renal tubular ... #Diagnosis #Low ... #Potassium #Table ... #Classification
Shock - Findings, Signs and Symptoms by Classification
 - Hypovolemic (Intravascular volume depletion)
 - Distributive (Vasodilation)
and Symptoms by Classification ... obstruction to blood flow ... DrEricStrong #Shock #Differential ... #Diagnosis #Classification ... Symptoms #Findings #Comparison
Abnormal Jugular Venous Pressure Waveforms - Differential Diagnosis
 - Absent a wave - Atrial fibrillation, sinus
Abnormal Jugular ... Pressure Waveforms - Differential ... percarditis - Slow ... #Waveforms #JVP ... #Differential #
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential ... Diagnosis Algorithm Low ... anions • Renal tubular ... #Hypokalemia #Differential ... Algorithm #Causes #Classification
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Transient renal tubular ... Hypomagnesemia #Differential ... #Diagnosis #Low ... Magnesium #Table #Classification
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... diarrhea • Kidney tubular ... high in kidney tubular ... of sodium and potassium ... Algorithm #nephrology #differential
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
body water in comparison ... osmolality helps to differentiate ... In regular subjects ... stimulated in states of low ... activated in states of low
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
/P Osm) Trans Tubular ... Potassium Gradient ... pCO2 HHE pk + log ... Atropine SO4: IVP ... 5mg q5min x 3 (slow
Causes of Hyperkalemia
l. Pseudohyperkalemia
  A Cellular efflux; thrombocytosis, erythrocytosis, leukocytosis, in vitro hemolysis
  B.
uropathy, post-acute tubular ... Drug-associated: heparin, low-molecular-weight ... #Hyperkalemia #Differential ... Diagnosis #High #Potassium ... #Classification