ATI RN
ATI Nutrition Proctored Exam
1. How is the equalization of solute concentration of intracellular fluids (ICFs) and extracellular fluids (ECFs accomplished?
- A. Semipermeable membranes.
- B. Hydration.
- C. Osmotic pressure.
- D. Perspiration.
Correct answer: C
Rationale: The correct answer is C, osmotic pressure. Osmotic pressure within the body equalizes the solute concentration of ICFs and ECFs by shifting small amounts of water in the direction of higher concentration solute. Semipermeable membranes separate one fluid compartment from another and do not directly equalize solute concentrations. Hydration and perspiration are important elements of fluid balance but do not directly achieve the equalization of solute concentrations between ICFs and ECFs, which is primarily regulated by osmotic pressure.
2. Each of the following is a function of the liver except one. Which one is the exception?
- A. Regulatory control of nutrients in the bloodstream
- B. Conversion of monosaccharides to triglycerides
- C. Breakdown of polysaccharide glycogen into glucose
- D. Oxidation of digestive end products to provide energy
Correct answer: B
Rationale: The correct answer is B. The liver does not convert monosaccharides to triglycerides; instead, it converts monosaccharides to glucose or glycogen. Choice A is correct because the liver plays a role in regulating the levels of various nutrients in the bloodstream. Choice C is correct as the liver breaks down stored glycogen into glucose to maintain blood sugar levels. Choice D is correct as the liver oxidizes digestive end products to provide energy. Therefore, only choice B is incorrect as the liver does not convert monosaccharides to triglycerides.
3. Riboflavin
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B3
- D. Vitamin B12
Correct answer: B
Rationale: Riboflavin is also known as Vitamin B2, which is important for energy production and the metabolism of fats, drugs, and steroids.
4. Which of the following has the greatest effect on an increase in body weight?
- A. Carbohydrate intake
- B. Protein intake
- C. Fat intake
- D. Total kilocalories
Correct answer: D
Rationale: Total kilocalories have the greatest effect on body weight as they represent the overall energy intake from all macronutrients combined. While the consumption of specific macronutrients like carbohydrates, proteins, and fats can affect weight management, the total calories consumed play the most significant role in determining body weight. Therefore, choices A, B, and C are incorrect as they focus on individual macronutrients rather than the overall energy balance provided by total kilocalories.
5. The recommended treatment modality in clients with obsessive-compulsive disorder is:
- A. Psychotherapy
- B. Behavior therapy
- C. Aversion therapy
- D. Psychoanalysis
Correct answer: B
Rationale: The recommended treatment modality for clients with obsessive-compulsive disorder is Behavior Therapy, not Psychoanalysis. Behavior therapy, specifically exposure and response prevention, is considered the first-line treatment for OCD. This therapy focuses on changing the patterns of behavior that contribute to the disorder. Psychotherapy, although beneficial in some cases, is not as effective as behavior therapy for OCD. Aversion therapy involves associating a stimulus with a negative outcome to reduce the frequency of a specific behavior, which is not the primary approach for OCD.
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