The doctor orders Augmentin 250 mg po q6h. The drug comes in a 2 gram vial. Directions say to reconstitute with 77.2 mL of sterile water to yield a solution of 125 mg/5 mL. How many mL will you administer to the client for the correct dose?
2 mL
8 mL
10mL
15 mL
The Correct Answer is C
Given:
Ordered dose of Augmentin: 250 mg
Drug comes in a 2 gram vial
Reconstituted volume: 77.2 mL
Concentration after reconstitution: 125 mg/5 mL
Step 1: Calculate the total volume of the reconstituted solution:
Total volume = 77.2 mL
Step 2: Calculate the total amount of Augmentin in the solution:
Total amount (mg) = Concentration (mg/mL) x Total volume (mL)
Total amount (mg) = 125 mg/5 mL x 77.2 mL
Total amount (mg) = 1930 mg
Step 3: Determine the number of doses in the vial:
Number of doses = Total amount (mg) / Ordered dose (mg/dose)
Number of doses = 1930 mg / 250 mg/dose
Number of doses = 7.72 doses
Step 4: Calculate the volume per dose:
Volume per dose (mL) = Total volume (mL) / Number of doses
Volume per dose (mL) = 77.2 mL / 7.72 doses
Volume per dose (mL) = 10 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) High protein diet:
A high-protein diet is generally not a recommended nonpharmacological treatment for heart failure. While adequate protein intake is important for overall health, heart failure management typically focuses more on regulating sodium, fluid, and caloric intake. In some cases, a high-protein diet could place additional strain on the kidneys or exacerbate other conditions that may complicate heart failure.
B) Limit salt intake:
Limiting salt (sodium) intake is a crucial nonpharmacological strategy in managing heart failure. Excessive sodium can cause the body to retain water, leading to fluid overload, which can worsen heart failure symptoms such as edema, shortness of breath, and elevated blood pressure. Reducing sodium intake helps prevent these complications and aids in controlling symptoms.
C) 50 pound weight loss:
While weight loss may be beneficial for some individuals, especially those who are obese, a sudden or extreme weight loss of 50 pounds is not typically advised for someone with heart failure unless supervised by a healthcare provider. Rapid weight loss can lead to dehydration or electrolyte imbalances, which may exacerbate heart failure symptoms.
D) Decrease Water intake:
While fluid restriction may be necessary for some individuals, especially those with severe fluid retention or in advanced stages of heart failure, it is not a blanket recommendation. The approach to fluid intake should be based on the individual’s condition, including factors such as kidney function and the presence of edema.
Correct Answer is D
Explanation
Given:
Volume of Glucerna 1.2: 237 mL
Desired concentration: 1/2 strength
Step 1: Determine the volume of Glucerna 1.2 needed for the half-strength solution:
Volume of Glucerna 1.2 for half-strength = Original volume / 2
Volume of Glucerna 1.2 for half-strength = 237 mL / 2
Volume of Glucerna 1.2 for half-strength = 118.5 mL
Step 2: Calculate the amount of water to be added:
Amount of water = Original volume - Volume of Glucerna 1.2 for half-strength
Amount of water = 237 mL - 118.5 mL
Amount of water = 118.5 mL
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