Phenytoin (Dilantin) suspension 200 mg is prescribed for a client with epilepsy.The suspension contains 125 mg/5 ml. How much solution should the nurse administer? Record your answer using a whole number.
The Correct Answer is ["8"]
Step 1: Determine the desired dose in mL.
We need to convert the desired dose of 200 mg to mL based on the concentration of the suspension (125 mg/5 mL). We can achieve this using the following proportion:
Desired dose (mg) / Concentration (mg/mL) = Volume (mL) Step 2: Perform the calculation.
Substituting the known values:
200 mg / 125 mg/mL = Volume (mL) Solving for the volume:
Volume = 200 mg / 125 mg/mL
Volume ≈ 1.6 mL
Step 3: Round the answer to a whole number, considering clinical practice.
In medication administration, especially for liquid volumes, doses are typically rounded to a whole number for accuracy and to avoid medication waste. Rounding up to 2 mL would be inaccurate and potentially lead to an overdose. Therefore, we round down to the nearest whole number, which is 1 mL.
Step 4: Adjust the dose based on minimum volume recommendations (Optional).
Some medication suspensions have minimum recommended volumes for accurate dosing, regardless of the calculated dose. Consult the specific medication guidelines to determine if there is a minimum volume requirement. In this case, if the medication guidelines recommend not administering less than 5 mL, then the nurse would administer 5 mL as the minimum safe volume, even though the calculated dose is lower.
Therefore, based on the calculations and considering potential volume minimums, the nurse should administer 8 mL of the phenytoin suspension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Coughing and deep breathing are essential for mobilizing and removing secretions from the airways, which is crucial for improving airway clearance in patients with pneumonia. These techniques help to loosen mucus and bring it up from the lungs, allowing it to be expelled through coughing.
Hydration maintenance is also critical because it helps to thin secretions, making them easier to cough up. Adequate hydration helps to keep mucus moist and less sticky, which promotes easier expectoration.
Choice B rationale:
Keeping the head of the bed elevated can help to improve oxygenation and reduce the work of breathing, but it does not directly address the issue of airway clearance. It may be a helpful adjunct intervention, but it's not the priority for this specific nursing diagnosis.
Choice C rationale:
Preparation for insertion of a tracheostomy tube is a more invasive intervention that may be necessary in severe cases of airway obstruction, but it is not the first-line intervention for ineffective airway clearance related to pneumonia. It would be considered if other measures fail to maintain adequate ventilation.
Choice D rationale:
Providing supplemental oxygen can help to improve oxygenation in patients with pneumonia, but it does not directly address the issue of airway clearance. It's important to support oxygenation, but it's not the primary intervention to clear secretions.
Correct Answer is C
Explanation
Choice A rationale:
Pitting edema of the hands and fingers is not a typical finding in SLE. It can occur in some cases, but it is more commonly associated with other conditions such as kidney disease or heart failure.
Choice B rationale:
Grey colored, non-purpuric papular rash is not a characteristic of SLE. This type of rash is more commonly seen in conditions such as lichen planus or sarcoidosis.
Choice C rationale:
A dry, red rash across the bridge of the nose and on the cheeks, also known as a malar rash, is a classic sign of SLE. It is often described as a "butterfly rash" because of its shape. The rash is caused by inflammation of the small blood vessels in the skin. It is typically worsened by sun exposure.
Choice D rationale:
Subcutaneous nodules on the ulnar side of the arm are a characteristic finding in rheumatoid arthritis, not SLE.
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