70 results
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Pathophysiology 1) Na/K ATPase ... of the Na+/K+ ATPase ... blocks the Na+/K+ ATPase ... of the Na+/K+ ATPase ... to the Na+/K+ ATPase
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Stimulation of Na/K-ATPase
#1,25-(OH)-D
Ca-+
Nat
ER
Na
Cytoplasmic receptor
Nuclear receptor
DNA
mRNA
#Lipid synthesis
Golgi body
Protein synthesis
Membrane lipids
CaBP
#ATPase
#Ca-+
Blood
#ATPase #Basal membrane
#Mitochondrion
Vesicle?
#Cytoplasmic #CaBP
(Ca-binding protein)
Brush border
Ca?+
lipids CaBP #ATPase ... #Ca-+ Blood #ATPase
Drugs that Impair Renal Potassium Excretion 

Decreased ENaC channel function: Amiloride, Triamterene, Pentamidine
Decreased Aldosterone Synthesis: Heparin,
Decreased Na, K-ATPase
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Inhibits Na-K ATPase
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
- exchanger,H+-ATPase
The Effect of Zinc on the Enteral Absorption of Copper. Panel A shows how copper (Cu)
a transporting ATPase
Distal Renal Tubular Acidosis
Distal RTA is the true Nephrogenic RTA and can be truly divided into
the luminal H ATPase
The chemical formula of Digoxin is C41 H64 O14.
Digoxin (Cardiac glycoside) reversibly inhibits the sodium-potassium-ATPase, causing
sodium-potassium-ATPase ... sodium-potassium-ATPase
Lumen
Luminal -
membrane
Nat-K+ ATPase
1
Primary active Nat and K+ transport
Blood
Na
Nat
145
mmol/L
Basolateral membrane
Na
15
mmol/L
2
4[Na*] = Chemical driving force for Nat
Nat
-70 m/
-70
membrane Nat-K+ ATPase