ATI RN
ATI Nutrition Proctored Exam
1. The principal cation in plasma and interstitial fluid is:
- A. Sodium
- B. Potassium
- C. Calcium
- D. Magnesium
Correct answer: A
Rationale: The principal cation in plasma and interstitial fluid is sodium. Sodium plays a crucial role in maintaining fluid balance and is the primary cation in extracellular fluids like plasma and interstitial fluid. Potassium is the primary cation within cells, not in extracellular fluids, making it an incorrect choice. Calcium and magnesium are essential minerals but are not the principal cations in plasma and interstitial fluid, so they are also incorrect choices.
2. What dietary factor raises triglyceride levels?
- A. high refined carbohydrate intake
- B. low soluble fiber intake
- C. high iron intake
- D. low fat intake
Correct answer: A
Rationale: The correct answer is A: high refined carbohydrate intake. High intake of refined carbohydrates, such as sugars and white flour, can lead to elevated triglyceride levels, increasing the risk of cardiovascular disease. Choice B, low soluble fiber intake, is incorrect because soluble fiber actually helps lower triglyceride levels. Choice C, high iron intake, is incorrect as iron intake is not directly linked to raising triglyceride levels. Choice D, low fat intake, is also incorrect as not all fats raise triglyceride levels; it depends on the type of fat consumed.
3. A client is prescribed albuterol (Proventil) via a metered-dose inhaler. Which action should the nurse take to ensure effective use of this medication?
- A. Instruct the client to inhale quickly while administering the medication.
- B. Have the client hold their breath for 10 seconds after inhaling the medication.
- C. Tell the client to exhale immediately after inhaling the medication.
- D. Encourage the client to use the inhaler as needed only when experiencing symptoms.
Correct answer: B
Rationale: To ensure effective use of albuterol via a metered-dose inhaler, the nurse should have the client hold their breath for 10 seconds after inhaling the medication. This action allows the medication to reach deeper into the airways. Inhaling slowly and deeply, not quickly, is recommended for optimal drug delivery. Exhaling immediately after inhaling the medication would expel it before it can take effect. It's essential for the client to follow the prescribed regimen of medication usage, not just using the inhaler when symptoms are present.
4. When a client has their 'fight or flight' system activated, which below is a manifestation of that?
- A. Decreased blood pressure
- B. Decreased heart rate
- C. Decreased respiration rate
- D. Increased glucose levels
Correct answer: D
Rationale: The correct answer is D, 'Increased glucose levels.' When the 'fight or flight' system is activated, the body releases glucose to provide energy for the impending response. This increase in glucose levels helps fuel the body's reaction to the perceived threat or stressor. Choices A, B, and C are incorrect because during the 'fight or flight' response, blood pressure, heart rate, and respiration rate typically increase to prepare the body to confront or flee from the perceived danger.
5. According to cognitive-developmental theory, a scheme is __________.
- A. an internal process that occurs apart from any contact with the environment
- B. the understanding that objects continue to exist when out of sight
- C. the ability to copy the behavior of others
- D. an organized way of making sense of experience
Correct answer: D
Rationale: In cognitive-developmental theory, a scheme is an organized way of making sense of experience. This term refers to mental structures or frameworks that help individuals interpret and understand the world around them. Choice A is incorrect because schemes are developed through interaction with the environment. Choice B refers to object permanence, a concept from Piaget's theory of cognitive development, not schemes. Choice C describes observational learning, which is different from the concept of schemes in cognitive development.
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