Nursing Elites

1. Normal human cells have ________

• A. twenty-two chromosome pairs and one pair of sex chromosomes.
• B. twenty-one trisomy chromosome pairs, one autosomal pair, and one pair of sex chromosomes.
• C. twenty-one chromosome pairs and two trisomy chromosome pairs.
• D. twenty-three chromosome pairs.

Correct answer: A

Rationale: Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This is the correct answer as it accurately describes the typical chromosome count in human cells. Choice B is incorrect because it mentions 'twenty-one trisomy chromosome pairs,' which is not characteristic of normal cells. Choice C is incorrect as it suggests having 'two trisomy chromosome pairs,' which is abnormal. Choice D is incorrect as it states 'twenty-three chromosome pairs,' which is not the standard count in normal human cells.

2. The site of chemical communication in the brain is the ________.

• A. neuron
• B. synapse
• C. axon
• D. dendrite

Correct answer: B

Rationale: The synapse is the correct answer. It is the site where communication between neurons occurs through the release and reception of neurotransmitters. Choice A, neuron, is incorrect as it is the cell itself rather than a specific site of communication. Choice C, axon, is also incorrect as it is a part of the neuron that transmits signals away from the cell body. Choice D, dendrite, is not the correct answer either, as dendrites receive signals from other neurons but do not release neurotransmitters for communication.

3. How does the biopsychosocial model differ from the biomedical model?

• A. The biopsychosocial model focuses solely on the biological aspects of disease.
• B. The biopsychosocial model includes biological, psychological, and social factors, whereas the biomedical model focuses on only biological factors.
• C. The biopsychosocial model is outdated and has been replaced by the biomedical model.
• D. The biopsychosocial model is identical to the biomedical model.

Correct answer: B

Rationale: The biopsychosocial model differs from the biomedical model by considering biological, psychological, and social factors in understanding health and illness. Choice A is incorrect because the biopsychosocial model does not solely focus on biological aspects. Choice C is incorrect as the biopsychosocial model is not outdated but rather offers a more comprehensive approach. Choice D is incorrect as the two models are distinct in their considerations of factors beyond biology.

4. What is the term for the age of an unborn baby, usually dated from the first day of an expectant mother's last menstrual cycle?

• A. Mental age
• B. Chronological age
• C. Functional age
• D. Gestational age

Correct answer: D

Rationale: The correct answer is D, Gestational age. Gestational age is calculated from the first day of the expectant mother's last menstrual cycle, providing an estimate of how far along the pregnancy is. Mental age (choice A), refers to an individual's level of cognitive functioning in relation to others of the same age group. Chronological age (choice B) is a person's actual age in years. Functional age (choice C) refers to how well a person is able to perform various activities compared to their chronological age.

5. Which part of the superego develops from our experiences with rewards for proper behavior and tells us what we should do?

• A. Conscience
• B. Ego-ideal
• C. Regressing back to the anal stage
• D. Regressing back to the oral stage

Correct answer: B

Rationale: The correct answer is B, the Ego-ideal. The Ego-ideal is a subsystem of the superego that develops from experiences with rewards for proper behavior. It guides individuals on what they should do, setting standards and ideals for behavior. Choice A, Conscience, represents the part of the superego that focuses on what one should not do, based on experiences with punishment for improper behavior. Choices C and D, regressing back to the anal and oral stages respectively, are irrelevant to the development of the superego's components and are not related to experiences with rewards for proper behavior.

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