ATI RN
Exam 4 Psychology
1. 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.
2. A 21-year-old female was recently diagnosed with iron deficiency anemia. In addition to fatigue and weakness, which of the following clinical signs and symptoms would she most likely exhibit?
- A. Hyperactivity
- B. Spoon-shaped nails
- C. Gait problems
- D. Petechiae
Correct answer: B
Rationale: The correct answer is B: Spoon-shaped nails. In iron deficiency anemia, spoon-shaped nails (koilonychia) are a common symptom due to changes in the nail bed. This condition is known as Plummer-Vinson syndrome. While fatigue and weakness are common in iron deficiency anemia, hyperactivity (choice A) is not typically associated with this condition. Gait problems (choice C) and petechiae (choice D) are more commonly seen in other medical conditions and are not characteristic of iron deficiency anemia.
3. A theory of development __________.
- A. illustrates the ultimate truth about human behavior
- B. describes, explains, and predicts behavior
- C. explains all aspects of human growth
- D. does not require scientific verification
Correct answer: B
Rationale: A theory of development describes, explains, and predicts behavior. It provides a framework for understanding how individuals grow and change over time. The purpose of a theory is not to illustrate ultimate truth or explain all aspects of human growth, but rather to help researchers and practitioners make sense of and predict human behavior. Theories are expected to be tested and refined through scientific verification. Choice A is incorrect because theories do not necessarily illustrate ultimate truth. Choice C is incorrect as theories focus on behavior and development, not all aspects of human growth. Choice D is incorrect because scientific verification is essential for theories to be valid and reliable.
4. A client with a pleural effusion is being assessed by a nurse. Which clinical manifestation does the nurse expect to find?
- A. Decreased breath sounds on the affected side
- B. Hyperresonance on percussion of the affected side
- C. Increased tactile fremitus on the affected side
- D. Tracheal deviation toward the affected side
Correct answer: A
Rationale: In a client with pleural effusion, decreased breath sounds on the affected side are common due to the presence of fluid in the pleural space. Hyperresonance is not expected; dullness on percussion is more likely. Tactile fremitus is typically decreased, not increased, in pleural effusion cases. Tracheal deviation away from the affected side, not toward it, can be seen with large effusions.
5. How many calories are contained in a food that has 15 grams of carbohydrates, 4 grams of protein, and 10 grams of fat?
- A. 106
- B. 124
- C. 166
- D. 202
Correct answer: C: 166
Rationale: To calculate the total calories in a food item, you can use the following conversions: every 1 gram of carbohydrate provides 4 calories, 1 gram of protein provides 4 calories, and 1 gram of fat provides 9 calories. Therefore, for this food item, multiply 15 grams of carbohydrates by 4 calories/gram, 4 grams of protein by 4 calories/gram, and 10 grams of fat by 9 calories/gram. The calculation would be (15 * 4) + (4 * 4) + (10 * 9) = 60 + 16 + 90 = 166 calories. Choice A (106) is incorrect because it does not consider the calories from fat. Choice B (124) is incorrect as it underestimates the calories by not including all macronutrients. Choice D (202) is incorrect as it overestimates the calories by adding up the values incorrectly.
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