75 mcg=____mg (Fill in the blank with the numerical value only)
The Correct Answer is ["0.075"]
Given quantity = 75 mcg (micrograms)
Desired unit = mg (milligrams)
Convert from mcg to mg
1 mg = 1000 mcg
75 mcg / 1000 mcg/mg
= 0.075 mg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["150"]
Explanation
Total volume to be infused = 1200 mL
Total infusion time = 8 hours
- Calculate the flow rate in mL per hour (mL/hr):
Flow rate (mL/hr) = Total volume (mL) / Total infusion time (hours)
= 1200 mL / 8 hours
= 150 mL/hr
Correct Answer is D
Explanation
A. The Cytochrome P-450 Enzyme System: This system plays a major role in drug metabolism, particularly in the liver, but it does not significantly affect drug distribution. Its primary influence is on the biotransformation of drugs into active or inactive metabolites.
B. Renal function: Renal function primarily affects drug excretion. Impaired kidney function can lead to drug accumulation and toxicity but has a minimal direct effect on the distribution of drugs throughout tissues and organs.
C. Gastric pH: Gastric pH influences drug absorption in the gastrointestinal tract, especially for pH-sensitive drugs. However, it plays little to no role in the actual distribution of the drug once it enters systemic circulation.
D. Blood flow: Blood flow is the most significant factor affecting drug distribution. Highly perfused organs like the brain, liver, and kidneys receive drugs more quickly and in higher concentrations than poorly perfused tissues, influencing the onset and intensity of drug action.
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