what physiologic role does magnesium play in the body
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. What physiologic role does magnesium play in the body?

Correct answer: B

Rationale: The correct answer is B. Magnesium plays an important role in maintaining calcium homeostasis and preventing skeletal abnormalities. It is involved in more than 300 enzymatic reactions, including energy metabolism, insulin activity, and glucose use. Magnesium is vital to the structural integrity of heart muscle and other muscles and nerves. While magnesium does play a role in blood clotting, nerve impulses, muscle contraction, relaxation, ATP energy release, and metabolism of fats, carbohydrates, proteins, the primary physiologic role of magnesium in the body is related to calcium homeostasis and maintaining the structural integrity of the heart muscle. Choice A is incorrect because it includes functions of magnesium, but they are not its primary physiologic role. Choice C is incorrect as magnesium has several known metabolic functions. Choice D is incorrect because although magnesium is involved in ATP energy release and metabolism, its primary role is related to calcium homeostasis and structural integrity of muscle.

2. What is the purpose of the cuff in a Tracheostomy tube?

Correct answer: B

Rationale: The purpose of the cuff in a Tracheostomy tube is to separate the trachea from the esophagus. The cuff helps prevent aspiration by creating a seal that separates the trachea from the esophagus, reducing the risk of food or fluids entering the lungs. Choices A, C, and D are incorrect because the cuff's primary function in a Tracheostomy tube is to prevent aspiration rather than separating the upper and lower airway, larynx from the nasopharynx, or securing the placement of the tube.

3. All of the following are contraindications when giving Immunization except:

Correct answer: B

Rationale: The correct answer is B. BCG vaccine can be given to a child with Hepatitis B, as there is no contraindication for this. Choice A, C, and D all present contraindications for administering immunizations. Choice A is incorrect because giving BCG vaccines to a child with AIDS is a contraindication. Choice C is incorrect as convulsions after the first DPT dose indicate a contraindication to subsequent doses. Choice D is incorrect because active convulsions or other neurological diseases are contraindications to receiving the DPT vaccine.

4. A nurse is providing teaching to a client who has type 1 diabetes mellitus. Which of the following statements by the client indicates an understanding of the teaching?

Correct answer: B

Rationale: The correct answer is B. Maintaining an HbA1c level of 5 percent indicates good long-term blood glucose control and understanding of diabetes management. Choice A is incorrect because the presence of albumin in the urine (albuminuria) is actually an indication of kidney damage in diabetes. Choice C is incorrect as ketones in the urine are a sign of inadequate insulin and can occur when blood glucose levels are high, not at a specific level like 190 mg/dL. Choice D is also incorrect as the client should aim to keep blood glucose levels within a tighter range for better control, typically between 80-130 mg/dL before meals and less than 180 mg/dL after meals.

5. Membership dropout generally occurs in group therapy after a member:

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.

Similar Questions

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A client is being taught by a nurse about adding more fiber to the diet. Which of the following foods has the highest fiber content?
A patient with an ileostomy is suffering from frequent diarrhea. The clinician should advise the patient to increase his intake of what food to thicken stool output?
Any disease that produces ____ malabsorption can bring about deficiencies of vitamins A, D, E, and K.

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