1. A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is
digoxin PO 0.25 mg/tablet. How many

... [Show More] tablets should the nurse administer per dose? (Round the answer to the
nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
0.5 tablet(s)
Correct Rationale: Ratio and Proportion

STEP 1: What is the unit of measurement the nuse should
calculate? tablet

STEP 2: What is the dose the nurse should administer? Dose to
administer= Desired 125 mcg

STEP 3: What is the dose available? Dose available =
Have 0.25

STEP 4: Should the nurse convert the units of measurement? Yes (mcg
does not equal mg)

1 mg/1000 mcg = x mg/125 mcg

X = 0.125 mg

STEP 5:
What is the quantity of the dose available? 1 tablet

STEP 6: Set up an equation and
solve for X.

Have/Quantity = Desired/X

0.25 mg/1 tablet = 0.125 mg/X tablet

X = 0.5

STEP 7: Round if necessary.

STEP 8: Reassess to determine
whether the amount to administer makes sense. If there are 0.25 mg/tab and the provider
prescribed 0.025 mg, it makes sense to administer 1/2 tab. The nurse should administer
digoxin tab PO daily.

Desired Over Have

STEP 1: What is the unit of
measurement the nurse should calculate? Tablet

STEP 2: What is the dose the nurse
should administer? Dose to administer= Desired 125 mcg

STEP 3: What is the dose
available? Dose available = Have 0.25 mg/tablet

STEP 4: Should the nurse convert
the units of measurement? Yes (mcg does not equal mg)

1 mg/1000 mcg = x
mg/125 mcg

X = 0.125 mg

STEP 5: What is the quantity of the dose available? 1
tablet

STEP 6: Set up an equation and solve for X.

Desired x Quantity/Have =
X

0.125 mg x 1 tablet/0.25 mg = X tab

0.5 = X

STEP 7: Round if
necessary.

STEP 8: Reassess to determine whether the amount to administer
makes sense. If there are 0.25 mg/tab and the provider prescribed 0.125 mg, it makes
sense to administer 1/2 tab. The nurse should administer digoxin tab PO
daily.

Dimensional Analysis

STEP 1: What is the unit of measurement the
nurse should calculate? Tablet

STEP 2: What is the quantity of the dose available? 1
tablet

STEP 3: What is the dose available? Dose available = Have 0.25 mg

STEP 4: What is the dose the nurse should administer? Dose to administer= Desired
125 mcg

STEP 5: Should the nurse convert the units of measurement? Yes (mcg
does not equal mg)

1 mg/1000 mcg = x mg/125 mcg

X = 0.125 mg

STEP 6:
Set up an equation and solve for X.

X = Quantity/Have x Conversion
(Have)/Conversion(Desired) x Desired/

X tablet = 1 tablet/0.25 mg x 0.125 mg/

X
= 0.5

STEP 7: Round if necessary.

STEP 8: Reassess to determine whether
the amount to administer makes sense. If there are 0.25 mg/tab and the provider
prescribed 0.125 mg, it makes sense to administer 1/2 tab. The nurse should administer
digoxin tab PO daily.

InCorrect Rationale: Ratio and Proportion

STEP 1: What is the unit of measurement the nuse should
calculate? tablet

STEP 2: What is the dose the nurse should administer? Dose to
administer= Desired 125 mcg

STEP 3: What is the dose available? Dose available
= Have 0.25

STEP 4: Should the nurse convert the units of measurement? Yes
(mcg does not equal mg)

1 mg/1000 mcg = x mg/125 mcg

X = 0.125
mg

STEP 5: What is the quantity of the dose available? 1 tablet

STEP 6: Set
up an equation and solve for X.

Have/Quantity = Desired/X

0.25 mg/1 tablet
= 0.125 mg/X tablet

X = 0.5

STEP 7: Round if necessary.

STEP 8:
Reassess to determine whether the amount to administer makes sense. If there are 0.25
mg/tab and the provider prescribed 0.025 mg, it makes sense to administer 1/2 tab. The
nurse should administer digoxin tab PO daily.

Desired Over Have

STEP
1: What is the unit of measurement the nurse should calculate? Tablet

STEP 2:
What is the dose the nurse should administer? Dose to administer= Desired 125 mcg

STEP 3: What is the dose available? Dose available = Have 0.25 mg/tablet

STEP 4: Should the nurse convert the units of measurement? Yes (mcg does not [Show Less]