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 ["A","B"]
Explanation
A) Ask the client to empty their bladder:
One of the first actions the nurse should take when the uterus is not firm (often referred to as uterine atony) is to ask the client to empty their bladder. A full bladder can interfere with uterine contraction and cause the uterus to be boggy or soft, which can lead to postpartum hemorrhage. Encouraging the client to void may help the uterus contract more effectively and reduce the risk of complications.
B) Perform fundal massage:
If the uterus is not firm, performing a fundal massage is essential. Fundal massage helps stimulate uterine contractions and helps the uterus contract to its normal size, reducing the risk of bleeding. It is a critical intervention in postpartum care to ensure that the uterus remains firm and does not become atonic, which can cause excessive blood loss.
C) Nothing, this is an expected finding:
A soft uterus (uterine atony) is not an expected finding 4 hours postpartum. A firm uterus is expected at this point to prevent hemorrhage. The nurse should take immediate action to address the issue of uterine atony, as failure to do so can lead to significant postpartum hemorrhage, a life-threatening complication.
D) Ambulate the client in the hallway:
Ambulation may be helpful later in the postpartum period to encourage circulation and prevent thromboembolism, but it is not a priority when the uterus is not firm. The first priority is to address uterine atony, and actions like emptying the bladder and massaging the fundus should be performed before ambulating the client.
E) Give pain medications:
While pain management is important, it is not the priority intervention when the uterus is not firm. The nurse must first address the cause of uterine atony (such as bladder distention) and stimulate uterine contractions via fundal massage to ensure that the uterus is firm and the client is not at risk for excessive bleeding. Pain medications can be given once the immediate uterine concerns have been addressed.
Correct Answer is B
Explanation
A) Category I:
Category I fetal heart rate patterns are considered normal and are characterized by a baseline fetal heart rate of 110–160 beats per minute, moderate variability, and the presence of accelerations. The pattern also lacks concerning decelerations. While this client’s fetal heart rate is within the normal baseline range (150 bpm), the presence of occasional variable decelerations indicates that the fetal heart rate pattern does not meet the criteria for Category I.
B) Category II:
Category II includes all fetal heart rate patterns that are not classified as Category I or III. This category represents indeterminate or concerning patterns, which require ongoing assessment and interventions. In this case, the fetal heart rate pattern includes a baseline within the normal range, moderate variability, accelerations, but also occasional variable decelerations. Variable decelerations, particularly when they occur intermittently, are often considered non-reassuring but not immediately concerning if they resolve quickly, placing the pattern in Category II.
C) Uncategorized:
"Uncategorized" refers to situations where the fetal heart rate pattern cannot be classified due to insufficient information or an unclear pattern. This is not applicable here because the nurse has identified sufficient data to classify the pattern.
D) Category III:
Category III patterns are considered abnormal and require prompt intervention. These patterns are characterized by persistent decelerations, such as late decelerations, bradycardia, or variable decelerations that do not resolve with interventions. Since the variable decelerations in this case are occasional and not persistent or severe, this pattern does not meet the criteria for Category III.
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