convert 0075 mg to micrograms
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Nursing Elites

ATI TEAS 7

Nursing Metric Conversions

1. Convert 0.075 mg to micrograms.

Correct answer: D

Rationale: To convert milligrams to micrograms, you need to multiply by 1000, not 10000. Therefore, to convert 0.075 mg to mcg, you multiply 0.075 by 1000, giving you 75 mcg. The correct answer is not provided in the choices, and the correct conversion is 75 mcg, which is not listed as an option. Choices A, B, and C are incorrect because they do not reflect the correct conversion factor. Choice D, 750 mcg, is a common mistake made by incorrectly adding a zero. It is important to remember that the conversion from milligrams to micrograms involves multiplying by 1000, not adding extra zeros.

2. What is the name of the structure that packages DNA in eukaryotic cells?

Correct answer: A

Rationale: - A nucleosome is the basic structural unit of DNA packaging in eukaryotic cells. It consists of DNA wrapped around a core of histone proteins. - Chromatin refers to the complex of DNA and proteins found in the nucleus of a eukaryotic cell, including nucleosomes. - Histones are the proteins around which DNA is wrapped to form nucleosomes. - Centromere is a region of a chromosome where the two sister chromatids are joined and to which spindle fibers attach during cell division.

3. Which of the following correctly describes mitosis?

Correct answer: B

Rationale: The correct answer is B. Mitosis occurs in somatic cells where a single cell divides to produce two identical daughter cells. Germ cells undergo meiosis, not mitosis. Choice C is incorrect as mitosis results in the preservation of the same chromosome number in daughter cells. Choice D is inaccurate as mitosis produces genetically identical cells, not genetically different ones.

4. Which structure, located between the pons and the spinal cord, plays a crucial role in coordinating movements, maintaining balance, and posture?

Correct answer: C

Rationale: The correct answer is the cerebellum. The cerebellum, located between the pons and the spinal cord, is responsible for coordinating movements, maintaining balance, and posture. The thalamus functions in relaying sensory and motor signals to the cerebral cortex, the medulla oblongata controls vital autonomic functions such as breathing and heart rate, and the hypothalamus regulates various bodily functions like temperature and hunger. Therefore, the cerebellum is the structure that specifically handles coordination, balance, and posture.

5. Hampton's greatest achievement as the leader of the BPP may be his fight against street gang violence in Chicago. Which of these, if any, is misspelled?

Correct answer: A

Rationale: The correct answer is A. All the words in the sentence are spelled correctly, so there is no misspelling present. 'Greatest,' 'achievement,' and 'leader' are all spelled correctly. Choice B, 'greatest,' is correctly spelled as it refers to the highest rank or importance. Choice C, 'achievement,' is also spelled correctly, denoting something accomplished successfully. Choice D, 'leader,' is the correct spelling for a person who leads or commands a group.

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