ATI RN
Psychology 2301 Exam 1
1. What are some common methods used to study genetic influences on behavior?
- A. Genetic influences are studied only through twin studies.
- B. Common methods include twin studies, adoption studies, and gene mapping.
- C. Genetic influences on behavior are only studied through family history.
- D. Genetic influences on behavior are not well understood.
Correct answer: B
Rationale: Common methods used to study genetic influences on behavior include twin studies, adoption studies, and gene mapping. Twin studies help to compare the similarities between identical and fraternal twins to estimate the heritability of a trait. Adoption studies look at the similarities between adopted children and their biological and adoptive parents to determine genetic influences. Gene mapping involves identifying specific genes associated with certain behaviors. Choices A, C, and D are incorrect because genetic influences on behavior are not solely studied through twin studies or family history, and while the understanding of genetic influences may vary, there are established methods to study them.
2. Intrinsic factor from the stomach is needed for the absorption of which vitamin?
- A. vitamin B12
- B. folate
- C. niacin
- D. vitamin B6
Correct answer: A
Rationale: The correct answer is A: vitamin B12. Intrinsic factor is a glycoprotein produced by the stomach that is necessary for the absorption of vitamin B12 in the small intestine. Vitamin B12 binds to intrinsic factor in the stomach, forming a complex that is then absorbed in the ileum. This absorption process is crucial for preventing vitamin B12 deficiency. Choices B, C, and D are incorrect because they do not require intrinsic factor for absorption. Folate is absorbed in the small intestine through a different mechanism, niacin can be absorbed in the small intestine without the need for intrinsic factor, and vitamin B6 does not rely on intrinsic factor for absorption.
3. A wound has a blood-tinged liquid that is dripping from the surgical site. How does the nurse document this finding?
- A. Creamy pus
- B. Serous
- C. Serosanguineous
- D. Purulent exudate
Correct answer: Serosanguineous
Rationale:
4. What is the priority nursing intervention for a patient experiencing a myocardial infarction?
- A. Administer aspirin
- B. Administer nitroglycerin
- C. Administer morphine
- D. Prepare for surgery
Correct answer: A
Rationale: The correct answer is to administer aspirin. Administering aspirin is a priority nursing intervention for a patient experiencing a myocardial infarction because it helps reduce the risk of further clot formation. Aspirin is a common medication given during the early stages of a heart attack to prevent additional clotting. Administering nitroglycerin may also be indicated to help relieve chest pain by dilating blood vessels, but aspirin takes precedence due to its role in preventing clot progression. Administering morphine is not typically the first intervention in myocardial infarction as it can mask symptoms and delay other critical treatments. Surgery is not an immediate priority in the initial management of a myocardial infarction.
5. Which nutrient has the highest satiety value?
- A. Complex carbohydrates
- B. High-quality protein
- C. Low-quality protein
- D. Fat
Correct answer: D
Rationale: Fat has the highest satiety value among the listed nutrients. It slows down digestion, stays in the stomach longer, and provides a sustained release of energy, leading to increased feelings of fullness and satisfaction. Complex carbohydrates can also contribute to satiety, but fat generally has a stronger effect. High-quality protein is important for satiety as well, but it is generally not as filling as fat. Low-quality protein does not have as significant satiating effects as high-quality protein or fat.
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