Calculate the flow rate in mL/hr. (Equpment used is programmable in whole mL/hr) 180 mL 0.45% NS in 40 min by infusion group
4.5 mL/hr
270 mL/hr
180 mL/hr
200 mL/hr
The Correct Answer is B
Given:
Volume of fluid: 180 mL
Infusion time: 40 minutes
Step 1: Convert infusion time to hours:
Infusion time (hr) = 40 min / 60 min/hr
Infusion time (hr) = 0.67 hr
Step 2: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Volume (mL) / Infusion time (hr)
Infusion rate (mL/hr) = 180 mL / 0.6667 hr
Infusion rate (mL/hr) = 269.987 mL/hr
Step 3: Round to the nearest whole number:
Infusion rate (mL/hr) ≈ 270 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) "My heart rate may increase":
Digoxin is primarily used to slow the heart rate, not increase it. One of its actions is to increase the force of contraction of the heart while slowing the conduction through the atrioventricular (AV) node, which typically leads to a decreased heart rate. An increase in heart rate would be an unusual side effect and might indicate digoxin toxicity or another underlying issue.
B) "My vision may get blurred":
A common side effect of digoxin toxicity is visual disturbances, which may include blurred vision, yellow-green halos, or other color vision abnormalities. These symptoms are often associated with elevated digoxin levels in the blood and are a hallmark sign of toxicity.
C) "I may have constipation after taking this medication":
Constipation is not a typical side effect of digoxin. While some medications may cause constipation, this is not a primary or common side effect of digoxin. If constipation occurs, it may be due to other factors, such as diet, other medications, or a comorbid condition.
D) "My abdomen may hurt after taking this medication":
Although abdominal discomfort can be a side effect of many medications, it is not a primary or typical side effect of digoxin. If the patient experiences abdominal pain, it could be related to digoxin toxicity, especially if accompanied by other symptoms like nausea, vomiting, or diarrhea.
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.
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