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 D
Explanation
A) Offering opioids followed by topical treatment:
While opioids can be effective for pain, they are typically reserved for more severe pain and are not the first line of treatment for the moderate pain commonly experienced postpartum, especially after a first-degree laceration. A stepwise approach emphasizes starting with less potent options and progressing as needed, so offering opioids first is not appropriate here.
B) Offering mindfulness only for pain:
While mindfulness and other non-pharmacological techniques can be helpful for pain management, offering only mindfulness as the sole approach may not adequately address the client's pain, especially in the early postpartum period. A stepwise approach typically involves combining pharmacological and non-pharmacological methods to achieve effective pain relief, so relying only on mindfulness is not the most effective strategy for this situation.
C) Giving the highest dose of opioids to make sure to eliminate the pain:
Stepwise pain management involves starting with the least invasive and least potent option, such as nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, and escalating treatment if necessary. Using high doses of opioids first can lead to unnecessary side effects and risks, especially when less potent options would suffice.
D) Starting with ibuprofen for pain management and adding cold therapy for additional relief:
This is an example of a stepwise approach to pain management. Starting with ibuprofen, an NSAID, addresses inflammation and mild to moderate pain effectively, which is appropriate for a first-degree laceration. Cold therapy can be added for additional relief, as it helps reduce swelling and numb the area, which can further reduce discomfort. This combination of pharmacological and non-pharmacological treatments follows the principle of starting with less potent options and adding more if needed, making it the best choice.
Correct Answer is B
Explanation
A) Right upper quadrant:
The right upper quadrant would not be the most appropriate place to auscultate the fetal heart rate in this scenario. In a vertex presentation with the fetal back on the left side, the best location for auscultation is typically along the fetal back, which is on the left side of the mother. The right upper quadrant would place you over the small parts of the fetus (limbs, hands, etc.), which generally would not be where the fetal heart rate is best heard.
B) Left upper quadrant:
The left upper quadrant is the most appropriate area to begin auscultation for this fetal heart rate (FHR) pattern. In this position, the fetal back is positioned towards the left side of the mother's abdomen, and the heart rate is typically heard most clearly over the back. The left upper quadrant would be over the fetal back, making it the best location to auscultate the FHR accurately.
C) Right lower quadrant:
The right lower quadrant would not be ideal for auscultating the fetal heart rate in this scenario. Since the fetal back is on the left side, the right lower quadrant would likely be over the fetal small parts (arms and legs), where the FHR would be harder to distinguish.
D) Left lower quadrant:
Although the left lower quadrant is on the left side of the mother, it's closer to the pelvic area and may be less effective for auscultating the fetal heart rate in this vertex presentation. It's more likely to be over the lower parts of the fetus, potentially interfering with accurate heart rate auscultation.
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