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?
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) "Have you had any health concerns during your pregnancy?"
While it's important to assess the client's overall health and pregnancy history, this question doesn't directly address the current concern of possible labor and does not immediately help assess the client's status for labor evaluation. The focus should be on signs of labor or complications at this point.
B) "Do you have a support person present?"
Although this is a helpful question to ask in preparation for labor, it doesn't provide the necessary information needed to assess whether the client is in labor. The priority at this stage is determining if the client is in labor or experiencing any complications, such as rupture of membranes.
C) "Have you noticed any fluid leaking from your vagina?"
This is the most important question to ask next. If the client has ruptured membranes (i.e., water breaking), it is important to assess the timing and nature of the fluid leakage, as it would indicate the need for immediate evaluation at the hospital. Rupture of membranes requires monitoring for infection and should prompt the client to come in for assessment regardless of the frequency or intensity of contractions.
D) "When was your last prenatal visit?"
While it is helpful to know when the client had their last prenatal visit, this question does not directly address the issue of possible labor. The priority is to determine if the client is in labor, whether their membranes have ruptured, or if there are any other complications such as bleeding or abnormal fetal movement. The question about fluid leakage is more immediate and relevant to their current condition.
Correct Answer is D
Explanation
A) At the umbilicus:
After delivery, the fundus is typically located at or just below the umbilicus in the immediate postpartum period, but it will gradually descend over the next few days. By 8 hours postpartum, the fundus is often slightly below the umbilicus, not directly at the umbilicus. The fundus will continue to shrink in size and move downward toward the pelvic region as the uterus contracts and involutes.
B) At a non-palpable depth:
A fundus that is non-palpable is generally expected later in the postpartum period, typically by 10-14 days after delivery, as the uterus contracts and returns to its pre-pregnancy size. At 8 hours postpartum, the fundus is still palpable, generally just below the umbilicus, and should be evaluated for firmness and position.
C) Just above the symphysis pubis:
The fundus is usually higher than the symphysis pubis at 8 hours postpartum, as it is still in the process of descending from the higher position it occupied during pregnancy. It would be expected to be just below the umbilicus or about 1 to 2 finger widths below it. By the second or third day postpartum, the fundus begins to move lower toward the symphysis pubis as it continues to involute.
D) Just below the umbilicus:
Eight hours after delivery, the nurse should expect to palpate the fundus just below the umbilicus. This is a typical finding as the uterus begins to contract and shrink after the delivery of the placenta. The fundus will descend about 1-2 cm per day postpartum, so by 8 hours, it is usually just slightly below the level of the umbilicus.
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