DRUG DOSAGE CALCULATIONS NURSING 2026 EXAM ( GRADE
A+++)!!!!!
1. Question
A 58-year-old client with congestive heart failure is admitted for diuresis after
gaining 4.5 kg in the past week. Lab values show a potassium level of 2.9 mEq/L
after aggressive IV furosemide therapy. The provider orders 40 mEq potassium
chloride (KCl) diluted in 250 mL NS to infuse over 4 hours via IV pump. The
pharmacy supplies premixed bags of 20 mEq/100 mL. The nurse must calculate
the infusion rate to set on the IV pump to safely administer this potassium
replacement.
Fill in the blank.
Answer: BLANK 1 of 1 mL/hr (rounded)
Answer: Fill in the blank 1 of 1
2
(63) mL/hr (rounded)
Incorrect
,Correct Answer: 63 mL/hr (rounded)
Ordered dose: 40 mEq in 250 mL over 4 hours
Available concentration: 20 mEq/100 mL
Formula:
T
o
t
a
l
V
o
l
u
m
e
,(
m
l
)
T
i
m
e
(
h
r
)
=
m
L
/
, h
r
Time (hr)
Total Volume (ml)
=mL/hr
Computation:
250
(
m
l
)
4
(
h
A+++)!!!!!
1. Question
A 58-year-old client with congestive heart failure is admitted for diuresis after
gaining 4.5 kg in the past week. Lab values show a potassium level of 2.9 mEq/L
after aggressive IV furosemide therapy. The provider orders 40 mEq potassium
chloride (KCl) diluted in 250 mL NS to infuse over 4 hours via IV pump. The
pharmacy supplies premixed bags of 20 mEq/100 mL. The nurse must calculate
the infusion rate to set on the IV pump to safely administer this potassium
replacement.
Fill in the blank.
Answer: BLANK 1 of 1 mL/hr (rounded)
Answer: Fill in the blank 1 of 1
2
(63) mL/hr (rounded)
Incorrect
,Correct Answer: 63 mL/hr (rounded)
Ordered dose: 40 mEq in 250 mL over 4 hours
Available concentration: 20 mEq/100 mL
Formula:
T
o
t
a
l
V
o
l
u
m
e
,(
m
l
)
T
i
m
e
(
h
r
)
=
m
L
/
, h
r
Time (hr)
Total Volume (ml)
=mL/hr
Computation:
250
(
m
l
)
4
(
h
