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A client is ordered digoxin 0.25mg po. daily. On hand is a liquid in a dropper bottle labeled 500mcg/10mL. How many milliliters will be administered?
Answer and Explanation

The Correct Answer is ["5"]

Given:

Desired dose: Digoxin 0.25 mg PO daily

Available concentration: Digoxin 500 mcg/10 mL

 

To find:

Volume to administer (in mL)

 

Step 1: Convert desired dose to micrograms

We know that 1 milligram (mg) is equal to 1000 micrograms (mcg). Therefore, to convert the desired dose from mg to mcg, we multiply by 1000:

Desired dose (mcg) = Desired dose (mg)x 1000

Desired dose (mcg) = 0.25 mg x 1000 = 250 mcg

 

Step 2: Set up the proportion

We can use the following proportion to solve the problem:

(Desired dose) / (Available concentration) = Volume to administer

 

Step 3: Substitute the values

Plugging in the given values, we get:

(250 mcg) / (500 mcg/10 mL) = Volume to administer

 

Step 4: Simplify

To simplify, we can invert the denominator and multiply:

(250 mcg) x (10 mL / 500 mcg) = Volume to administer

The "mcg" units cancel out, leaving us with:

(250 x 10 mL) / 500 = Volume to administer

 

Step 5: Calculate

Performing the multiplication and division, we get:

2500/ 500 = Volume to administer

5 mL = Volume to administer


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Related Questions

Correct Answer is ["D","E","I","K"]

Explanation

The newborn's assessment findings that require follow-up:

Temperature 35.7°C (96.3°F) at 2200:

Hypothermia in newborns can lead to cold stress, which increases the risk of respiratory distress and hypoglycemia. The newborn’s temperature should be closely monitored, and warming measures should be initiated to prevent further complications.

Respiratory rate 68/min at 2200:

A respiratory rate above 60 breaths per minute in a newborn is considered tachypnea and can indicate respiratory distress or underlying conditions such as infection. The newborn should be further evaluated to determine the cause of the tachypnea and to ensure proper oxygenation.

Sternal retractions at 2200:

Sternal retractions suggest that the newborn is experiencing increased work of breathing, which is a key sign of respiratory distress. This requires immediate evaluation to assess the severity and identify potential causes, such as respiratory infections or inadequate ventilation.

Coarse rhonchi in bilateral lung fields at 2200:

The presence of coarse rhonchi indicates abnormal breath sounds, often related to fluid retention or infection in the lungs. This finding requires further assessment and possibly interventions to clear the airway and support respiratory function.

Correct Answer is ["108"]

Explanation

Given:

Total volume to infuse: 325 mL

Infusion time: 3 hours

To find:

Infusion rate (mL/hr)

Step 1: Calculate the infusion rate

Infusion rate (mL/hr) = Total volume / Infusion time

Infusion rate (mL/hr) = 325 mL / 3 hours ≈ 108.33 mL/hr

Step 2: Round to a whole number

108 mL/hr

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