Nursing Elites

1. What neurotransmitter was first believed to be the cause of schizophrenia?

• A. GABA
• B. Serotonin
• C. Epinephrine
• D. Dopamine

Correct answer: D

Rationale: The correct answer is Dopamine. Dopamine was initially thought to be the primary cause of schizophrenia. This neurotransmitter hypothesis was based on the observation that drugs that increase dopamine activity can worsen symptoms of schizophrenia, while drugs that decrease dopamine activity can improve symptoms. Choices A, B, and C are incorrect because GABA, serotonin, and epinephrine were not the neurotransmitters initially believed to be the cause of schizophrenia.

2. Roger has suffered a major brain injury. As a result, he is unable to speak fluently, tends to mispronounce words, and speaks haltingly. For instance, he says 'wat' instead of 'watch' and 'tot' instead of 'talk.' What is the diagnosis?

• A. Agnosia
• B. Spatial neglect
• C. Broca's aphasia
• D. Prosopagnosia

Correct answer: C

Rationale: The correct diagnosis for Roger's condition is Broca's aphasia. Broca's aphasia is characterized by difficulty in speaking fluently and accurately, often due to brain injury. In this case, Roger's symptoms of being unable to speak fluently, mispronouncing words, and speaking haltingly align with the characteristics of Broca's aphasia. Agnosia refers to the inability to recognize or interpret sensory information, spatial neglect is the lack of awareness of one side of the body or space, and prosopagnosia is the inability to recognize faces, none of which match Roger's symptoms.

3. Barney helps his younger brother, who has just learned to cycle on his own, to navigate narrow roads and sharp turns. Vygotsky will refer to this as ________?

• A. Microsystem
• B. Macrosystem
• C. Mesosystem
• D. Exosystem

Correct answer: C

Rationale: In this scenario, where Barney is assisting his younger brother in navigating narrow roads and sharp turns, Vygotsky would refer to this as an example of the 'mesosystem.' The mesosystem involves the interactions between different systems in a child's environment, such as family and peers. Choices A, B, and D are incorrect: A) Microsystem refers to the immediate environment where the child lives, like home and school; B) Macrosystem encompasses the larger cultural context; D) Exosystem involves external settings that indirectly influence the child.

4. 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: The correct answer is A. Normal human cells have twenty-two chromosome pairs and one pair of sex chromosomes. This adds up to a total of 46 chromosomes. Choice B is incorrect as it mentions twenty-one trisomy chromosome pairs, which is not a characteristic of normal human cells. Choice C is also incorrect as it states twenty-one chromosome pairs and two trisomy chromosome pairs, which is not accurate for normal human cells. Choice D is incorrect as it mentions twenty-three chromosome pairs, which is not the correct number for normal human cells.

5. There is experimental evidence showing that consistently being discriminated against may cause a person to ________.

• A. be happy.
• B. be more conscious.
• C. have cardiovascular reactivity.
• D. have greater intelligence and wisdom.

Correct answer: C

Rationale: The correct answer is C: 'have cardiovascular reactivity.' Consistent discrimination can lead to increased cardiovascular reactivity, impacting heart health. Choice A ('be happy') is incorrect because discrimination typically causes distress and negative emotions. Choice B ('be more conscious') is not directly related to the impact of discrimination. Choice D ('have greater intelligence and wisdom') is also unrelated to the physiological response of cardiovascular reactivity caused by discrimination.

Similar Questions