Proctored Nutrition ATI

Question 1 of 5

What is the function of villi and microvilli in the GI tract?

A. produce bile B. kill bacteria C. produce vitamin K D. increase the surface area for absorption

Correct Answer: D

Rationale: Villi and microvilli in the GI tract serve to increase the surface area of the small intestine, aiding in the absorption of nutrients into the bloodstream.

Choices A, B, and C are incorrect as villi and microvilli are primarily involved in enhancing absorption, not in producing bile, killing bacteria, or producing vitamin K.

Question 2 of 5

What is considered an acceptable LDL cholesterol level for children and adolescents?

A. Less than 70 mg/dL B. Less than 110 mg/dL C. Less than 129 mg/dL D. Less than 170 mg/dL

Correct Answer: B

Rationale: An LDL cholesterol level of less than 110 mg/dL is considered acceptable and healthy for children and adolescents. This level helps reduce the risk of cardiovascular diseases.

Choices A, C, and D are incorrect because an LDL cholesterol level below 110 mg/dL is the recommended target for children and adolescents to maintain good heart health.

Question 3 of 5

Sickle cell disease is an example of an inherited mistake in the amino acid sequence.

A. TRUE B. FALSE C. D.

Correct Answer: A

Rationale: The statement is TRUE. Sickle cell disease is caused by a genetic mutation in the hemoglobin gene, leading to an abnormal amino acid sequence. This results in the production of abnormal hemoglobin molecules, causing red blood cells to become sickle-shaped. This inherited condition is a classic example of a genetic error affecting the amino acid sequence, making choice A the correct answer.

Choices B, C, and D are incorrect as they do not accurately reflect the nature of sickle cell disease.

Question 4 of 5

High blood pressure is defined as systolic and diastolic measurements greater than or equal to:

A. 140 mm Hg and 90 mm Hg, respectively B. 150 mm Hg and 80 mm Hg, respectively C. 160 mm Hg and 110 mm Hg, respectively D. 180 mm Hg and 120 mm Hg, respectively

Correct Answer: A

Rationale: High blood pressure, or hypertension, is typically defined as having a systolic pressure of 140 mm Hg or higher and/or a diastolic pressure of 90 mm Hg or higher.
Therefore, the correct answer is A.
Choice B is incorrect because it suggests a higher systolic measurement than the standard definition.
Choice C is incorrect as it provides an even higher systolic measurement and a much higher diastolic measurement.
Choice D is also incorrect as it suggests extremely elevated blood pressure values, well above the typical definition of hypertension.

Question 5 of 5

What describes a criterion used to diagnose diabetes?

A. a plasma glucose concentration of 100 mg/dL or higher after a fast of at least 12 hours B. a casual blood sample of 200 mg/dL or higher in a person with classic symptoms C. a plasma glucose concentration measured two hours after a 200-gram glucose load is 400 mg/dL or higher D. a HbA1C higher than 5 percent

Correct Answer: B

Rationale: A casual blood sample of 200 mg/dL or higher in a person with classic symptoms is a diagnostic criterion for diabetes. This choice aligns with the typical clinical presentation of diabetes and is a key diagnostic indicator.

Choices A, C, and D do not accurately reflect the established criteria for diagnosing diabetes, making them incorrect.
Choice A pertains to a fasting plasma glucose level,
Choice C involves a glucose challenge test, and
Choice D refers to HbA1C levels, which are used for monitoring blood sugar control over time, not for diagnosing diabetes.

Proctored Nutrition ATI - Nurselytic

Nurselytic

ATI RN

ATI RN