The healthcare provider prescribes streptomycin 200 mg IM every 12 hours. The vial is labeled, "Streptomycin 1 gram/2.5 mL." How many milliliters should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.5"]
To find out how many milliliters the nurse should administer, we first need to calculate the volume required to deliver 200 mg of streptomycin.
Given:
Streptomycin concentration: 1 gram/2.5 mL
Dose prescribed: 200 mg
We'll start by converting the dose prescribed from milligrams (mg) to grams (g) since the concentration is given in grams:
200 mg = 0.2 grams
Now, we can set up a proportion to find the volume (x) needed to deliver 0.2 grams of streptomycin:
1 gram / 2.5 mL = 0.2 grams / x
Cross-multiplying:
1 * x = 0.2 * 2.5
x = 0.5 mL
So, the nurse should administer 0.5 milliliters of streptomycin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
A. Provide a back rub at bedtime:
This intervention addresses the client's immediate need for comfort and relaxation without resorting to restrictive measures or medications.
B. Leave the door to the client's room open slightly:
Leaving the door open may not prevent wandering and could potentially lead to safety issues.
C. Apply wrist restraints to prevent wandering:
Restraints should only be used as a last resort and when all other interventions have failed. They pose risks to the client's physical and psychological well-being and should be avoided whenever possible.
D. Administer a PRN sedative prescription:
Sedatives should be used judiciously and only after other non-pharmacological interventions have been attempted. Sedating the client may increase the risk of falls or injury and should not be the first-line intervention for managing sleep disturbances or wandering behavior.
Correct Answer is B
Explanation
A. Switch to a non-rebreather mask:
A non-rebreather mask delivers a higher concentration of oxygen (typically 10-15 L/min) compared to a nasal cannula. However, switching to a non-rebreather mask is a more drastic step that might not be necessary immediately. Other, simpler interventions should be considered first.
B. Verify placement of pulse oximeter:
Before making any changes, it's crucial to verify the accuracy of the oxygen saturation reading. The pulse oximeter might be misplaced or malfunctioning, leading to an inaccurate reading. This is an appropriate first action to ensure the reading is correct before deciding on further interventions.
C. Remove nasal cannula:
Removing the nasal cannula would decrease the client’s oxygenation further, worsening the situation. This is not an appropriate action when oxygen saturation is already low.
D. Increase the oxygen to 3 L/minute:
Increasing the oxygen flow rate is a reasonable intervention to improve oxygen saturation. However, this should typically be done after verifying the accuracy of the oxygen saturation reading. If the reading is correct, this is a valid next step to improve the client’s oxygenation.
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