convert 3450 grams to milligrams mg
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Nursing Elites

ATI TEAS 7

Nursing Metric Conversions

1. Convert 3,450 grams to milligrams (mg).

Correct answer: B

Rationale: To convert grams to milligrams, you need to multiply by 1,000 since there are 1,000 milligrams in a gram. Therefore, 3,450 grams × 1,000 = 3,450,000 milligrams. Choice A (34,500 mg) is incorrect because it represents the result for converting grams to milligrams by a factor of 10 (not 1,000). Choice C (3,450 mg) is incorrect as it represents the original amount in grams, not the converted amount to milligrams. Choice D (3,450,000 mg) is incorrect as it is the same as the correct answer but with the comma in the wrong place, which would imply converting kilograms to milligrams rather than grams to milligrams.

2. What is the main purpose of a thesis statement?

Correct answer: B

Rationale: The main purpose of a thesis statement is to clearly state the main idea or argument of the essay. It serves as a roadmap for the reader, outlining the central point that the essay will address. Choice A, 'To summarize the essay,' is incorrect because while a thesis statement does provide a concise summary of the main point, its primary function is to present the main idea, not summarize the entire essay. Choice C, 'To ask a question,' is incorrect as a thesis statement is a declarative statement that asserts a position or argument rather than posing a question. Choice D, 'To provide evidence,' is incorrect because a thesis statement does not offer evidence but rather sets the direction and focus for the evidence that will be presented in the essay.

3. Which type of mutation involves a change in the number of chromosomes?

Correct answer: D

Rationale: A) Point mutation involves a change in a single nucleotide base pair within the DNA sequence. B) Frameshift mutation involves the insertion or deletion of nucleotides, causing a shift in the reading frame of the genetic code. C) Missense mutation involves a single nucleotide change that results in a codon that codes for a different amino acid. D) Aneuploidy involves a change in the number of chromosomes, where an individual may have an extra chromosome (trisomy) or a missing chromosome (monosomy). Aneuploidy can lead to genetic disorders such as Down syndrome (trisomy 21) or Turner syndrome (monosomy X). Changing the number of chromosomes is a characteristic feature of aneuploidy, making it the correct answer. Point mutation, frameshift mutation, and missense mutation do not involve a change in the number of chromosomes and are focused on alterations at the nucleotide level within the DNA sequence.

4. Which unit of measurement is larger, inches or centimeters?

Correct answer: A

Rationale: Inches are larger than centimeters. This is because one inch is equivalent to 2.54 centimeters. Therefore, when comparing the two units, inches are greater in length than centimeters. Choice B is incorrect as centimeters are smaller than inches. Choice C is incorrect as inches and centimeters are not the same size. Choice D is incorrect as the relationship between inches and centimeters is fixed, with inches being larger in general.

5. Which of the following neurotransmitters is associated with the feeling of happiness and well-being?

Correct answer: B

Rationale: The correct answer is B: Serotonin. Serotonin is a neurotransmitter known for its role in mood regulation, promoting feelings of happiness and well-being. It helps regulate emotions, sleep, and appetite. Low levels of serotonin have been linked to conditions like depression and anxiety. Choice A, Dopamine, is more associated with pleasure and reward pathways in the brain. GABA (Choice C) is an inhibitory neurotransmitter involved in reducing neuronal excitability, not primarily linked to happiness. Acetylcholine (Choice D) is involved in muscle contraction and has functions related to memory and attention, but it is not primarily associated with feelings of happiness and well-being.

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