ATI RN
ATI Nutrition Practice A
1. Starting material for sex hormones:
- A. cholesterol
- B. phospholipid
- C. saturated
- D. triglyceride
Correct answer: A
Rationale: Cholesterol is a precursor for the synthesis of sex hormones like estrogen and testosterone.
2. Located in the middle of the brain, what organ is responsible for satiety and hunger?
- A. Medulla Oblongata
- B. Pituitary Gland
- C. Hypothalamus
- D. Parathyroid
Correct answer: C
Rationale: The hypothalamus, located in the middle of the brain, plays a crucial role in regulating hunger and satiety. It contains specific regions that control appetite and feeding behavior. The Medulla Oblongata (Choice A) is responsible for regulating vital functions like heartbeat and breathing, not hunger. The Pituitary Gland (Choice B) is an endocrine gland that secretes hormones but is not primarily involved in hunger regulation. The Parathyroid (Choice D) is responsible for regulating calcium levels in the body and not related to hunger or satiety.
3. Select all that apply. Which of the following are true about protein digestion?
- A. the end products of protein digestion are amino acids
- B. protein/polypeptides are digested in the large intestine by trypsin
- C. A, D
- D. protein/polypeptides are digested in the stomach by pepsin
Correct answer: C
Rationale: Protein digestion begins in the stomach with the enzyme pepsin, which breaks down proteins into smaller polypeptides. The end products of protein digestion are amino acids.
4. What is the term for a state of disequilibrium wherein a person cannot readily solve a problem or situation using their usual coping mechanisms?
- A. Crisis
- B. Mental health
- C. Mental illness
- D. Stress
Correct answer: A
Rationale: In psychological terms, a 'Crisis' refers to a state of disequilibrium wherein a person cannot readily solve a problem or situation even by using his usual coping mechanisms. This is different from 'Mental Illness' (Choice C) which is a more general term for a wide range of mental health conditions that affect mood, thinking and behavior. 'Mental Health' (Choice B) is a state of well-being in which an individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and is able to make a contribution to his or her community. Finally, 'Stress' (Choice D) is a state of mental or emotional strain or tension resulting from adverse or demanding circumstances, but it does not necessarily disrupt equilibrium to the extent that usual coping mechanisms are ineffective, unlike 'Crisis'.
5. Patients with congestive heart failure need to restrict their intake of:
- A. fiber
- B. sodium
- C. cholesterol
- D. saturated fat
Correct answer: B
Rationale: Patients with congestive heart failure need to restrict their intake of sodium. This restriction is crucial to prevent fluid retention, which can exacerbate the condition. While fiber is generally beneficial for heart health, sodium restriction is more critical in this scenario. Cholesterol and saturated fat intake should also be monitored, but sodium restriction takes precedence due to its direct impact on fluid balance.
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