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 B
Explanation
A) Uterine contractions:
While uterine contractions cause significant pain and discomfort during labor, particularly in the first and early second stages, by the time the client reaches the second stage of labor, the cervix is fully dilated, and the main cause of pain and pressure is no longer from the contractions themselves. Instead, the pain and pressure described in the second stage are primarily due to the fetal head descending through the birth canal, applying pressure to the perineum.
B) The fetal head applying pressure:
The pain and pressure reported in the second stage of labor are primarily due to the fetal head descending into and through the birth canal, putting pressure on the cervix, vagina, perineum, and pelvic floor. This pressure is a major source of discomfort in the second stage, as the fetal head stretches the tissues of the perineum, which is essential for facilitating birth. The sensation of pressure on the pelvic floor is often described by clients during this stage.
C) Nerve stimulation:
Nerve stimulation occurs during labor as a result of uterine contractions and the fetal descent, which can cause radiating pain to the lower back, thighs, and pelvic region. However, the specific pain and pressure in the pelvis and perineum described by the client are more directly related to the fetal head applying pressure, rather than generalized nerve stimulation. Nerve stimulation may contribute to pain but is not the primary cause of the pelvic and perineal pressure at this stage.
D) Cervical dilation:
Cervical dilation occurs in the earlier stages of labor (latent and active phases), and while it contributes to pain during these stages, by the second stage, the cervix should be fully dilated (10 cm). The pain and pressure that the client is feeling in the second stage are less about cervical dilation and more about the descent of the fetal head through the birth canal and its pressure on the perineum and pelvic floor.
Correct Answer is A
Explanation
A) G5 T1 P2 A1 L2:
G (Gravida): Gravida refers to the total number of pregnancies, including the current pregnancy. In this case, the woman is currently pregnant and has had 4 previous pregnancies (one miscarriage at 10 weeks, one at 22 weeks, and two live births). Therefore, her Gravida (G) is 5.
T (Term births): Term births are those that occur at or after 37 weeks of gestation. The woman delivered an 18-month-old daughter who was born 2 days after her due date, which is a term birth. Thus, her Term (T) is 1.
P (Preterm births): Preterm births occur between 20 and 36 weeks of gestation. The woman had a son born at 35 weeks, which is classified as a preterm birth. Therefore, the Preterm (P) is 2.
A (Abortions or miscarriages): Abortions refer to pregnancies that ended before 20 weeks of gestation. The woman experienced two miscarriages, one at 10 weeks and one at 22 weeks. Thus, the Abortions (A) is 1.
L (Living children): Living children are those who are currently alive. The woman has a 3-year-old son and an 18-month-old daughter, so the Living (L) is 2.
Thus, the correct GTPAL classification is G5 T1 P2 A1 L2.
B) G5 T2 P2 A1 L2:
This is incorrect because the woman had only one term birth (not two). She delivered her daughter at term, but the son was preterm (born at 35 weeks). Therefore, her Term (T) should be 1, not 2.
C) G4 T1 P2 A2 L2:
This is incorrect because the woman is currently pregnant, so her Gravida (G) is 5, not 4. Additionally, the woman had 1 abortion, not 2.
D) G4 T1 P1 A2 L2:
This is also incorrect because the woman is currently pregnant, so her Gravida (G) is 5, not 4. Furthermore, the woman had 2 preterm births, not 1.
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