Nursing Elites

1. Which hormone, produced by the adrenal glands, helps regulate the body's response to stress, including increasing blood pressure and suppressing the immune system?

• A. Aldosterone
• B. Epinephrine
• C. Cortisol
• D. Insulin

Correct answer: C

Rationale: Cortisol is the correct answer. It is the hormone produced by the adrenal glands that helps regulate the body's response to stress. Cortisol plays a crucial role in increasing blood pressure and suppressing the immune system during stressful situations. Aldosterone, another hormone from the adrenal glands, primarily regulates salt and water balance in the body, not the stress response. Epinephrine, also known as adrenaline, is produced by the adrenal glands in response to stress, but its effects are more immediate and short-lived compared to cortisol. Insulin, produced by the pancreas, regulates blood sugar levels and is not directly involved in the body's response to stress.

2. Which of the following pieces of writing should include citations?

• A. A comparison of the language used in two different Shakespeare plays
• B. A news article describing a burglary
• C. A description of your favorite play
• D. A personal essay about your lifelong interest in marine biology

Correct answer: A

Rationale: The correct answer is A. A comparison of the language used in two different Shakespeare plays should include citations to support the analysis. Citations are necessary in academic or analytical pieces to give credit to the original sources, especially when comparing specific works. Choices B, C, and D do not require citations as they are more subjective or personal in nature. Choice B, a news article, should be based on facts and not personal analysis. Choice C is a personal opinion, and choice D is a personal essay based on the author's experiences and interests, where citations are not typically needed.

3. What is the primary function of the epiglottis in the respiratory system?

• A. Filtration of air
• B. Production of mucus
• C. Prevention of food entering the trachea
• D. Oxygen exchange in the alveoli

Correct answer: C

Rationale: The primary function of the epiglottis in the respiratory system is to prevent food from entering the trachea. During swallowing, the epiglottis covers the opening of the trachea, guiding food down the esophagus to the stomach and preventing it from entering the airway. This mechanism safeguards the respiratory system from foreign objects, ensuring proper air passage and avoiding potential choking hazards. Choices A, B, and D are incorrect: A) Filtration of air is mainly performed by the nasal hairs and the mucous membranes of the respiratory tract. B) Production of mucus is primarily carried out by the mucous glands in the respiratory system to trap particles and humidify the air. D) Oxygen exchange in the alveoli occurs in the lungs and is related to the process of respiration, not the function of the epiglottis.

4. Which of the following words is hyphenated correctly?

• A. Ex-president
• B. Hyperactive
• C. Self-made
• D. Mid-America

Correct answer: D

Rationale: The correct answer is 'Mid-America.' It is correctly hyphenated as it combines 'Mid' and 'America' to form a compound noun. Choice A, 'Ex-president,' should be hyphenated to show the prefix 'Ex-' before 'president.' Choice B, 'Hyperactive,' should not be hyphenated as 'hyper' is a prefix. Choice C, 'Self-made,' should be hyphenated to connect 'self' and 'made' in this compound adjective.

5. Blood type is a trait determined by multiple alleles, with IA coding for A blood, IB coding for B blood, and i coding for O blood being recessive. If an individual with A heterozygosity and an O individual have a child, what is the probability that the child will have A blood?

• A. 25%
• B. 50%
• C. 75%
• D. 100%

Correct answer: B

Rationale: When an A heterozygote individual (IAi) and an O individual (ii) have a child, there are four possible combinations of alleles that the child can inherit: IA from the A parent and i from the O parent; IA from the A parent and i from the O parent; i from the A parent and i from the O parent; i from the A parent and i from the O parent. Out of these combinations, 50% of the offspring will inherit the A allele from the A parent, resulting in A blood type. Therefore, the correct answer is 50%. Choice A is incorrect because the probability is not 25%. Choice C is incorrect as it overestimates the likelihood. Choice D is incorrect as it suggests a certainty which is not the case in genetics.

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