iron is a component of which of the following proteins responsible for transport of oxygen in the bloodstream
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Nursing Elites

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1. Which of the following proteins is iron a component of, responsible for the transport of oxygen in the bloodstream?

Correct answer: A

Rationale: The correct answer is A: hemoglobin. Hemoglobin is the protein found in red blood cells that is responsible for carrying oxygen from the lungs to the rest of the body. Iron is a crucial component of hemoglobin, binding to oxygen and allowing for its transport. Choice B, transferrin, is involved in iron transport in the blood but not in oxygen transport. Choice C, myoglobin, is a protein found in muscle cells that stores oxygen for muscle use, not transportation in the bloodstream. Choice D, hepcidin, is a peptide hormone that regulates iron absorption in the intestines and iron distribution in the body, but it is not directly involved in oxygen transport.

2. Nurse Joel and Ana are helping a 16-year-old Nursing Student in a case filed against the student for frustrated homicide. Nurse Joel and Ana are aware of the different circumstances of crimes. They are correct in identifying which of the following circumstances will be best applied in this case?

Correct answer: A

Rationale: In cases of frustrated homicide, the circumstance of 'justifying' is the most applicable. Justifying circumstances are those that exempt the individual from criminal liability because the act is considered morally right or justified under the circumstances. Aggravating circumstances would worsen the offense, mitigating circumstances would lessen the penalty, and exempting circumstances would completely excuse the individual from liability, none of which are suitable in a case of frustrated homicide.

3. James wants to know the recommended intake for iron for his gender and age. Which of the following would provide the best answer for James?

Correct answer: C

Rationale: The Recommended Dietary Allowance (RDA) is the correct answer for James because it provides the daily intake level that meets the nutrient needs of most healthy individuals in a specific age and gender group. Choice A, EAR (Estimated Average Requirement), represents the average daily nutrient intake level estimated to meet the requirement of half the healthy individuals in a particular life stage and gender group. Choice B, UL (Tolerable Upper Intake Level), is the maximum daily intake unlikely to cause adverse health effects. Choice D, DV (Daily Value), is a general guide used for food labeling that represents how much a nutrient in a serving of food contributes to a daily diet based on a 2000-calorie daily intake.

4. The nurse’s most unique tool in working with the emotionally ill client is his/her

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.

5. The most significant factor that might affect the nurse’s care for the psychiatric patient is:

Correct answer: D

Rationale: Understanding the underlying pathology and therapeutic techniques ensures that nursing care is not only reactive but also preventative, reducing the risk of complications.

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