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. Select all that apply. Characteristics of the 2 main types of essential fatty acids discussed in class include:
- A. they must be supplied by the diet
- B. they can be produced by a process called dehydrogenation
- C. they are anti-inflammatory
- D. they are all polyunsaturated fatty acids
Correct answer: A
Rationale: The correct answer is A: 'they must be supplied by the diet.' Essential fatty acids, like omega-3 and omega-6, cannot be produced by the body and must be obtained through the diet. They are polyunsaturated fatty acids, playing vital roles in inflammation and cell membrane structure. Choice B is incorrect because essential fatty acids cannot be produced by dehydrogenation, a process of removing hydrogen. Choice C is incorrect as not all essential fatty acids are anti-inflammatory; some have pro-inflammatory roles. Choice D is incorrect because not all essential fatty acids are polyunsaturated; omega-9, for example, is a monounsaturated essential fatty acid.
3. Which of the following methods is the best method for determining nasogastric tube placement in the stomach?
- A. X-ray
- B. Observation of gastric aspirate
- C. Testing of pH of gastric aspirate
- D. Placement of external end of tube under water
Correct answer: A
Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.
4. Which organ produces and secretes bicarbonate ions and insulin?
- A. Stomach
- B. Pancreas
- C. Large intestine
- D. Small intestine
Correct answer: B
Rationale: The pancreas is the correct answer because it performs two vital functions: producing bicarbonate ions to neutralize stomach acid in the small intestine and secreting insulin to regulate blood glucose levels. The stomach is incorrect because its primary function is to break down and digest food, not produce bicarbonate ions or insulin. The large and small intestines are also incorrect because their primary functions are to absorb nutrients and water from food, rather than producing bicarbonate ions or insulin.
5. Nurse Edna thinks that the patient is somewhat like his father. She then identifies positive feeling for the patient that affects the objectivity of her nursing care. This emotional reaction is called:
- A. Transference
- B. Counter Transference
- C. Reaction formation
- D. Sympathy
Correct answer: A
Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.
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