hypokalemia is reflected in the ecg by which of the following
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ATI RN

ATI Nutrition Practice Test A 2019

1. Which of the following is reflected in an ECG due to hypokalemia?

Correct answer: B

Rationale: Hypokalemia, a condition characterized by low levels of potassium in the blood, is reflected in an ECG by a widening QRS Complex and a U wave. This is because potassium plays a key role in the electrical activity of the heart, and its deficiency can lead to abnormalities in the heart's rhythm as represented by these specific changes on the ECG. Choice A is incorrect as tall T waves and pathologic Q waves are more commonly associated with hyperkalemia or myocardial infarction, respectively, rather than hypokalemia. Choices C and D are also incorrect as they do not accurately reflect the ECG changes caused by hypokalemia.

2. The purpose of the health history is to identify health-related considerations and medications that may cause nutritional risk. Many medications, such as prednisone, have drug-nutrient interactions that can influence nutrient needs.

Correct answer: A

Rationale: Both statements are true. The health history aims to uncover health-related factors that could pose nutritional risks, including medications like prednisone that may have interactions affecting nutrient requirements. Choice B is incorrect as both statements are accurate, emphasizing the significance of health history in assessing nutritional concerns.

3. A client who 1) _____ diet requires 2) ___ amounts of vitamin C.

Correct answer: B

Rationale: The correct answer is B) Smokes cigarettes, More. Smoking increases the need for vitamin C as it can deplete the body's vitamin C levels. Vegan diets, on the other hand, require more vitamin C for optimal absorption due to the absence of heme iron, which enhances non-heme iron absorption. Choices A and C are incorrect because vegan diets require more vitamin C, while smoking increases the need for vitamin C.

4. What is the term for a barrier that prevents the normal emptying of stomach contents into the duodenum?

Correct answer: C

Rationale: Gastric outlet obstruction refers to a condition where the opening between the stomach and the duodenum is blocked, preventing the normal passage of food. This is why choice 'C' is correct. 'A: Dumping syndrome' is incorrect because it is a condition where stomach contents move too quickly through the small intestine, not a barrier preventing emptying. 'B: Gastritis' is inflammation of the stomach lining, not a blockage of the outlet. 'D: Hypochlorhydria' refers to low stomach acid, which may affect digestion but does not create a physical barrier blocking the outlet of the stomach.

5. What is the process of formal negotiations of working conditions between a group of registered nurses and employer?

Correct answer: C

Rationale: The correct answer is 'collective bargaining.' Collective bargaining involves negotiations between a group of employees, in this case, registered nurses, and their employer to determine working conditions, wages, benefits, and other aspects of employment. Grievance refers to a formal complaint about a workplace issue, arbitration involves a neutral third party making a decision in a dispute, and a strike is a work stoppage by employees to protest against their employer.

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