What are the two main purposes for diuretics?
The two main purposes for diuretics are to decrease fluid and decrease hypertension (lower blood pressure).
The two main purposes are to decrease fluid volume in thetissues and circulation, increasing blood pressure.
The two main purposes of diuretics are to increase fluid in the body and blood pressure.
The two main purposes of diuretics are to increase circulating fluid and lower blood pressure
The Correct Answer is A
A) The two main purposes for diuretics are to decrease fluid and decrease hypertension (lower blood pressure):
Diuretics primarily work by promoting the excretion of excess sodium and water from the body, which decreases fluid volume. This reduction in fluid volume helps to lower blood pressure, especially in conditions like hypertension and heart failure, where fluid buildup can exacerbate symptoms.
B) The two main purposes are to decrease fluid volume in the tissues and circulation, increasing blood pressure:
The primary purpose of diuretics is to decrease fluid volume, which helps lower blood pressure, not increase it. Diuretics are used to reduce the workload on the heart and the risk of complications like stroke and heart failure by lowering blood pressure and removing excess fluid from the body.
C) The two main purposes of diuretics are to increase fluid in the body and blood pressure:
Diuretics do not increase fluid in the body. In fact, they decrease fluid in the body to help reduce blood pressure. This option contradicts the fundamental mechanism of action of diuretics.
D) The two main purposes of diuretics are to increase circulating fluid and lower blood pressure:
Diuretics do not increase circulating fluid; they decrease it. By promoting the excretion of sodium and water, diuretics decrease the volume of circulating fluid, which is a key factor in lowering blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Convert ounces to milliliters (1 oz = 29.5735 mL):
8 oz coffee: 8 × 29.5735 = 236.588 mL
3 oz juice: 3 × 29.5735 = 88.7205 mL
12 oz soda: 12 × 29.5735 = 354.882 mL
Calculate the water intake from the water pitcher:
Total water intake: 800 mL (initial) - 200 mL (remaining) = 600 mL
Calculate the IV fluid intake:
IV fluids at 40 mL/hr for 8 hours: 40 × 8 = 320 mL
Add all the fluid amounts:
Totalfluidintake=236.588mL+88.7205mL+354.882mL+600mL+320mL=1600.1905mL
Rounding to the nearest whole number: 1600 mL.
Correct Answer is A
Explanation
Given:
Ordered dose of Dopamine: 3 mcg/kg/min
Child's weight: 41.8 lbs
Concentration of Dopamine: 400 mg in 250 mL D5W
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 41.8 lbs x 0.453592 kg/lb = 18.935 kg
Step 2: Calculate the total dose of Dopamine in mcg/min:
Total dose (mcg/min) = Ordered dose (mcg/kg/min) x Child's weight (kg)
Total dose (mcg/min) = 3 mcg/kg/min x 18.935 kg
Total dose (mcg/min) = 56.805 mcg/min
Step 3: Convert mcg to mg:
Total dose (mg/min) = Total dose (mcg/min) / 1000 mcg/mg
Total dose (mg/min) = 56.805 mcg/min / 1000 mcg/mg
Total dose (mg/min) = 0.056805 mg/min
Step 4: Calculate the total dose in mg/hr:
Total dose (mg/hr) = Total dose (mg/min) x 60 min/hr
Total dose (mg/hr) = 0.056805 mg/min x 60 min/hr
Total dose (mg/hr) = 3.4083 mg/hr
Step 5: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Total dose (mg/hr) / Concentration (mg/mL)
Infusion rate (mL/hr) = 3.4083 mg/hr / (400 mg/250 mL)
Infusion rate (mL/hr) = 3.4083 mg/hr x (250 mL/400 mg)
Infusion rate (mL/hr) = 2.1301875 mL/hr
Step 6: Round to the nearest tenth:
Infusion rate (mL/hr) ≈ 2.1 mL/hr
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