which of the following is the absorbable unit of a protein

ATI RN

ATI Nutrition Practice A

1. What is the absorbable unit of a protein?

A. Amino acid
B. Pepsin
C. Glucose
D. Sucrose

Correct answer: A

Rationale: Amino acids are the correct answer because they are the building blocks of proteins that the body absorbs after digestion. Pepsin, choice B, is incorrect as it is an enzyme that aids in the digestion of proteins, not the absorbable unit of them. Choices C and D, glucose and sucrose, are wrong because they are types of sugars, not proteins.

2. A multivitamin supplement containing folic acid is recommended for all young women because of the number of unintentional pregnancies in women 15 to 24 years old.

A. Both the statement and the reason are correct and related
B. Both the statement and the reason are correct but are not related
C. The statement is correct, but the reason is not correct
D. The statement is not correct, but the reason is correct

Correct answer: A

Rationale: Both the statement and the reason are correct and related. A multivitamin with folic acid is recommended for young women due to the high incidence of unplanned pregnancies in this age group.

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

A. Tall T waves and Pathologic Q wave
B. Widening QRS Complex and U wave
C. None of the above
D. Both A and B

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.

4. You are an ostomy nurse and you know that colostomy is defined as:

A. It is an incision into the colon to create an artificial opening to the exterior of the abdomen
B. It is end to end anastomosis of the gastric stump to the duodenum
C. It is end to end anastomosis of the gastric stump to the jejunum
D. It is an incision into the ileum to create an artificial opening to the exterior of the abdomen

Correct answer: A

Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.

5. Worldwide, what is the most common nutrient deficiency?

A. magnesium deficiency
B. iron deficiency
C. selenium deficiency
D. zinc deficiency

Correct answer: B

Rationale: Iron deficiency is the most common nutrient deficiency globally. It leads to anemia and affects many populations, especially women and children. Magnesium, selenium, and zinc deficiencies are important, but they are not as prevalent as iron deficiency on a global scale.