Amiloride inhibits K+ excretion in the distal tubules
and collecting ducts by blocking:
A. Electrogenic K+ channels
B. Electrogenic Na+ channels
C. Nonelectrogenic Na+-Cl–
symport
D. H+K+ATPase
and collecting ducts by blocking:
A. Electrogenic K+ channels
B. Electrogenic Na+ channels
C. Nonelectrogenic Na+-Cl–
symport
D. H+K+ATPase