a pulse oximeter is attached to mr dizons finger to
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Nursing Elites

ATI RN

ATI Nutrition Practice Test A 2019

1. Why is a pulse oximeter attached to Mr. Dizon's finger?

Correct answer: D

Rationale: A pulse oximeter is used to detect the oxygen saturation levels in arterial blood before the onset of hypoxemia symptoms. This device provides essential information about the effectiveness of oxygen transportation to the body's tissues. Choice A is incorrect because a pulse oximeter does not directly measure hemoglobin levels nor determine the need for a blood transfusion. Choice B is incorrect because a pulse oximeter is designed specifically to assess oxygen saturation, not tissue perfusion. Choice C is incorrect because a pulse oximeter is not used to measure the efficacy of anti-hypertensive medications, but rather to monitor oxygen levels in the blood.

2. Riboflavin

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.

3. Which of the following statements are true about iron?

Correct answer: C

Rationale: Choice C is correct because iron absorption is indeed increased by Vitamin C and during pregnancy. The other choices are incorrect. Choice A is wrong as there are no universally accepted percentages for the iron needs of vegans and endurance athletes. Choice B is inaccurate as iron deficiency is actually one of the most common nutritional deficiencies worldwide. Choice D is incorrect because tannic acid and calcium in milk actually inhibit iron absorption rather than increasing it.

4. Maternal malnutrition at a critical period of development may have lifelong effects on an individual's pattern of genetic expression and on the tendency to develop obesity, which is a concept known as _____.

Correct answer: D

Rationale: Fetal programming refers to the concept that maternal nutrition during critical periods of development can have long-term effects on an individual's health and risk of diseases like obesity.

5. A client is being taught about following a low-cholesterol diet after coronary artery bypass grafting. Which of the following food choices reflects the client's understanding of these dietary instructions?

Correct answer: C

Rationale: Choosing beans as a food option indicates that the client understands the low-cholesterol diet instructions. Beans are a good source of fiber and plant-based protein, which can help lower cholesterol levels. On the other hand, liver and eggs are high in cholesterol and should be limited in a low-cholesterol diet. Milk, especially whole milk, can also be high in saturated fats and cholesterol, so it is not the best choice for a low-cholesterol diet.

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