Using abbreviations and the rules of the metric system, express the following quantities correctly: Six hundredth:
600 g
0.06 g
0.006
0.6 g
The Correct Answer is B
A) 600 g
This is incorrect because it represents the quantity 600 grams, which is a significantly larger amount than "six hundredth." The phrase "six hundredth" refers to six out of 100, or 0.06 in decimal form. In the metric system, 600 grams would indicate a much higher quantity, far from what is requested. Therefore, this option does not fit the definition of "six hundredth."
B) 0.06 g
The term "six hundredth" refers to six parts out of one hundred, which is mathematically expressed as 0.06. In the metric system, it is common to represent small quantities of mass, such as grams, in decimal form. The number 0.06 is precisely six hundredths, and the proper representation for this in terms of grams is 0.06 g. This is the correct scientific notation for the given quantity, as it accurately reflects six hundredths of a gram.
C) 0.006 g
This is incorrect because 0.006 grams represents six thousandths, not six hundredths. In decimal notation, six thousandths would be represented as 0.006, which is one order of magnitude smaller than six hundredths. The difference between 0.006 and 0.06 is significant. While both numbers are small, 0.006 would refer to an even smaller quantity than 0.06, which is not in line with the intended meaning of "six hundredth."
D) 0.6 g
While 0.6 grams may appear similar at first glance, it represents six-tenths (6/10), not six hundredths (6/100). The number 0.6 is much larger than 0.06, and it would be used to indicate a weight that is 60% of a gram, not a small fraction like six hundredths.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Given:
Ordered dose of acetaminophen: 10 mg/kg
Child's weight: 22 lb
Concentration of acetaminophen liquid: 160 mg/5 mL
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 22 lbs x 0.453592 kg/lb = 9.976824 kg
Step 2: Calculate the total dose of acetaminophen:
Total dose (mg) = Ordered dose (mg/kg) x Child's weight (kg)
Total dose (mg) = 10 mg/kg x 9.976824 kg
Total dose (mg) = 99.76824 mg
Step 3: Calculate the volume to be administered:
Volume (mL) = Total dose (mg) / Concentration (mg/mL)
Volume (mL) = 99.76824 mg / 160 mg/5 mL
Volume (mL) = 99.76824 mg x (5 mL / 160 mg)
Volume (mL) = 3.1177575 mL
Step 4: Round to the nearest tenth:
Volume (mL) ≈ 3.1 mL
Correct Answer is ["A","B","D","E"]
Explanation
A) Subcutaneous:
The subcutaneous route involves administering medication into the layer of fat and connective tissue beneath the skin. This method is used for drugs that require slower absorption, such as insulin or certain vaccines.
B) Intramuscular:
The intramuscular route involves injecting medication directly into a muscle. This allows for faster absorption compared to subcutaneous injections, making it ideal for drugs that need to be absorbed quickly, such as vaccines or certain antibiotics.
C) Via a nasogastric tube:
Administering drugs via a nasogastric tube is not considered a parenteral route. The nasogastric (NG) tube delivers medications directly into the stomach via the gastrointestinal tract, which is not part of the parenteral system. Parenteral routes are those that bypass the digestive system, like injections.
D) Intradermal:
The intradermal route involves injecting medication just under the skin, in the dermis. This is typically used for allergy testing or tuberculosis screenings. It is a parenteral route because it bypasses the digestive system.
E) Intravenous:
The intravenous route involves injecting medication directly into a vein, offering rapid absorption and fast onset of action. This method is ideal for critical or emergency situations where immediate medication effects are necessary.
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