A patient is receiving an IV of 500 mL of D5W (dextrose 5% in water).
How many grams (g) of dextrose are contained in this IV solution?
10g
25g
50g
100g
The Correct Answer is B
Dextrose 5% in water (D5W) is an IV fluid that contains **5 grams of dextrose** per 100 mL of water². To calculate how many grams of dextrose are in 500 mL of D5W, you can use a simple proportion:
5 g / 100 mL = x g / 500 mL
Cross-multiply and solve for x:
x = (5 g * 500 mL) / 100 mL
x = 25 g
Therefore, there are **25 grams of dextrose** in 500 mL of D5W.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
One inch is equal to **2.54 centimeters**²³⁴. To convert inches to centimeters, you can multiply the value in inches by 2.54. For example, 2.54 centimeters x 1 inch = 2.54 centimeters.
Therefore, to convert 2.54 centimeters to inches, you can divide the value in centimeters by 2.54. For example, 2.54 centimeters / 2.54 = 1 inch.
The answer is **1 inch**.
Correct Answer is D
Explanation
This instruction should be given to the patient for the effective management of asthma because the patient is taking an overdose of ipratropium, which may cause serious side effects such as dry mouth, blurred vision, urinary retention, or increased heart rate. The recommended dosage of ipratropium for adults with acute asthma is 0.5 mg (500 mcg) every 20 minutes for three doses, followed by 0.5 mg every two to four hours as needed³. The patient's prescribed dose is 5 mg/kg, which means 300 mg/day for a 60 kg patient. This is 10 times the maximum daily dose of 2 mg (2000 mcg) for ipratropium⁴. Therefore, the patient should halve the dose of medication to 150 mg/day, which is still higher than the usual dosage, but within the range that can be given under medical supervision.
The other options are not appropriate instructions because:
a) Continuing the same dose of medication may worsen the patient's condition and increase the risk of adverse reactions.
b) Changing to alternative medication may not be necessary or effective, as ipratropium is a commonly used bronchodilator for asthma that works by relaxing the airway muscles and improving airflow⁵. The patient may benefit from adjusting the dose or adding other medications, such as corticosteroids or beta-agonists, depending on the severity and frequency of symptoms.
c) Doubling the dose of medication may be dangerous and potentially fatal, as it may cause severe anticholinergic effects, such as dry mouth, blurred vision, urinary retention, increased heart rate, confusion, or coma.
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