A nurse is caring for a client ordered ceftazidime 1g IM every 6 hours. The drug comes in a vial with a powder which is reconstituted with 3mL of sterile water for a final concentration of 280 mg/mL. How many mi. will be drawn into the syringe for the dose ordered? Do not use leading zero (Round to the tenth)
The Correct Answer is ["3.6"]
Given:
Desired dose: Ceftazidime 1 g IM every 6 hours
Available concentration: Ceftazidime 280 mg/mL
To find:
Volume to administer (in mL)
Step 1: Convert desired dose to milligrams
1 gram (g) is equal to 1000 milligrams (mg).
Multiply by 1000:
Desired dose (mg) = Desired dose (g) x 1000
Desired dose (mg) = 1 g x 1000 = 1000 mg
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:
(1000 mg) / (280 mg/mL) = Volume to administer
Step 4: Simplify
To simplify, we can invert the denominator and multiply:
(1000 mg) x (1 mL / 280 mg) = Volume to administer
The "mg" units cancel out, leaving us with:
(1000 x 1 mL) / 280 = Volume to administer
Step 5: Calculate
Performing the multiplication and division, we get:
1000 mL / 280 = Volume to administer
3.57 mL ≈ Volume to administer
Step 6: Round to the nearest tenth
3.6mL
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 ["B","E"]
Explanation
A) Fusion of labia in female genitalia:
Fusion of the labia in a female newborn is not an expected finding. This could indicate a condition such as labial adhesion or an abnormality in the development of the genitalia. Normally, the labia in a female newborn are separated. Any signs of fusion would require further evaluation by the healthcare provider.
B) Erythema toxicum on newborn's skin:
Erythema toxicum is a common and expected finding in newborns, usually appearing within the first 2–3 days of life. It consists of small, red papules or pustules on a red base, often described as a "flea-bitten" appearance. This rash is benign and resolves on its own within a few days to weeks. It is not associated with any infection or underlying health issues.
C) Hypospadias is noted in the male newborn:
Hypospadias, a condition where the urethral opening is located on the underside of the penis rather than at the tip, is not an expected finding in all newborn males. While it occurs in a small percentage of male infants, it is a congenital anomaly that would require further assessment and possibly surgical correction. It is not considered a normal finding in a newborn.
D) Presence of syndactyly in extremities:
Syndactyly, the condition where two or more fingers or toes are fused together, is not a normal finding in newborns. While it is a congenital anomaly that can occur in some infants, it is not expected and requires further evaluation and possibly surgical intervention depending on the severity.
E) Negative Ortolani sign:
A negative Ortolani sign is an expected and normal finding in a newborn. The Ortolani maneuver is used to assess for hip dislocation, and a negative result indicates that the hip is stable and not dislocated. If the Ortolani sign were positive, it would suggest the presence of a developmental hip dysplasia, which would require further diagnostic evaluation. A negative sign is considered typical and reassuring.
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