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:
Lymph nodes are small, bean-shaped structures that play a crucial role in the immune system. They filter lymph fluid, which carries white blood cells and other immune cells throughout the body.
When the body is fighting an infection or other immune challenge, lymph nodes often swell and become tender. This is because they are actively working to filter out pathogens and activate immune cells.
Palpation of the lymph nodes can provide valuable information about the patient's immune function. The nurse can assess for enlargement, tenderness, and mobility of the lymph nodes.
Lymph node assessment is a non-invasive, painless procedure that can be performed quickly and easily.
Choice B rationale:
Auscultation of the apical heart rate is important for assessing cardiovascular function, but it does not directly assess immune function.
While heart rate can be indirectly affected by certain immune conditions (e.g., fever), it is not a primary indicator of immune system activity.
Choice C rationale:
Palpation of the liver can provide information about liver size and consistency, but it does not directly assess immune function.
The liver plays a role in immune function by producing proteins that help fight infection, but its size and consistency do not necessarily reflect its immune activity.
Choice D rationale:
Percussion of the abdomen can be used to assess the size and location of abdominal organs, but it does not directly assess immune function.
While certain immune conditions may involve abdominal organs (e.g., splenomegaly), percussion is not a primary method for assessing immune function.
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.
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