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 C
Explanation
A) Simvastatin:
Simvastatin is a medication used to lower cholesterol levels by inhibiting HMG-CoA reductase, an enzyme involved in the production of cholesterol in the liver. It is not an angiotensin-converting enzyme (ACE) inhibitor. Therefore, it does not have a direct effect on blood pressure or the renin-angiotensin system.
B) Losartan:
Losartan is an angiotensin II receptor blocker (ARB), not an ACE inhibitor. Like ACE inhibitors, ARBs are used to treat conditions like hypertension and heart failure, but they work differently by blocking the receptors that angiotensin II binds to, rather than inhibiting the enzyme that converts angiotensin I to angiotensin II.
C) Quinapril:
Quinapril is an ACE inhibitor. ACE inhibitors block the enzyme angiotensin-converting enzyme, which converts angiotensin I into angiotensin II, a potent vasoconstrictor. By inhibiting this conversion, ACE inhibitors like quinapril help lower blood pressure, reduce strain on the heart, and treat conditions like hypertension and heart failure.
D) Metoprolol:
Metoprolol is a beta-blocker, not an ACE inhibitor. It works by blocking beta-adrenergic receptors in the heart, which helps to lower heart rate and blood pressure. It is often used in the management of hypertension, heart failure, and to prevent heart attacks, but it does not affect the renin-angiotensin system like ACE inhibitors.
Correct Answer is D
Explanation
Given:
Volume of fluid: 50 mL (DSW) + 10 mL (for reconstitution) = 60 mL
Infusion time: 45 minutes
Drop factor: 10 gtt/mL
Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)
Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 60 mL / 45 min
Infusion rate (mL/min) = 1.33 mL/min
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 1.33 mL/min x 10 gtt/mL
Flow rate (gtt/min) = 13.3 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 13 gtt/min
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.