each is true of proteins except one which is the exception

ATI RN

Nutrition ATI Proctored Exam

1. Each statement is true of proteins, except one. Which is the exception?

A. Proteins are composed of building blocks called amino acids
B. The classification of the 20 common amino acids is based on the properties of their side chains
C. The general structure of an amino acid varies considerably
D. Amino acids polymerize to form long chains called polypeptides

Correct answer: B

Rationale: The correct answer is B. The classification of the 20 common amino acids is not based on the properties of their side chains, but rather on the structure of their amino and carboxyl groups. These groups are consistent among all amino acids, while the side chains, also known as R groups, are what vary and give each amino acid its unique properties. Choice A is correct because proteins are indeed composed of amino acids. Choice C is incorrect because while the side chains of amino acids can vary, the general structure of an amino acid - a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain - is consistent. Choice D is correct because amino acids do polymerize to form long chains called polypeptides, which can then fold into complex shapes to form proteins.

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.

A. Both statements are true
B. Both statements are false
C. The first statement is true; the second is false
D. The first statement is false; the second is true

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. Which statement indicates understanding of a low-fiber diet?

A. I can cut up carrots and celery sticks for my lunch.
B. I will eat a bran muffin for my mid-morning snack.
C. I will have oatmeal with skim milk for my breakfast.
D. I should choose canned peaches for my fruit serving.

Correct answer: D

Rationale: The correct answer is D because canned peaches are low in fiber compared to the other options provided. Option A contains high-fiber vegetables (carrots and celery), option B includes a bran muffin which is fiber-rich, and option C involves oatmeal which is also a good source of fiber. Therefore, choosing canned peaches aligns with a low-fiber diet.

4. A nurse is caring for an 8-month-old infant who screams when the parent leaves the room. The parent begins to cry and says, 'I don't understand why my child is so upset. I've never seen my child act this way around others before.' Which of the following statements should the nurse make?

A. This is a normal, expected reaction for a child of this age.
B. This is a response to an overstimulating environment.
C. This is a common reaction to an overexposure to caregivers.
D. This is a typical reaction for a child who is sick.

Correct answer: A

Rationale: The correct answer is 'This is a normal, expected reaction for a child of this age.' Separation anxiety typically peaks around 8-10 months of age, leading to distress when separated from caregivers. Choice B is incorrect because the infant's behavior is more likely due to separation anxiety rather than overstimulation. Choice C is incorrect as the infant's behavior is not related to overexposure to caregivers but rather a natural developmental stage. Choice D is incorrect as the infant's behavior is not indicative of illness but rather a normal emotional response.

5. What are sheets/forms that provide an efficient and time-saving way to record information that must be obtained repeatedly at regular and/or short intervals of time? This does not replace progress notes; instead, it records information on vital signs, intake and output, treatment, postoperative care, postpartum care, and diabetic regimen, etc. These are used whenever specific measurements or observations need to be documented repeatedly. What is this?

A. Nursing Kardex
B. Graphic Flow Sheets
C. Discharge Summary
D. Medicine and Treatment Record

Correct answer: A

Rationale: The correct answer is A, Nursing Kardex. Nursing Kardex is a tool used for documenting essential patient information that needs to be recorded repeatedly at regular intervals. It includes vital signs, intake and output, treatment details, postoperative care, postpartum care, and diabetic regimen. This tool is efficient and time-saving for healthcare professionals. Choice B, Graphic Flow Sheets, may be used for visual representation of patient data but is not specifically designed for repeated documentation of essential information. Choice C, Discharge Summary, is a document outlining the patient's care and condition at the time of discharge, not for repeated recording of ongoing data. Choice D, Medicine and Treatment Record, focuses more on specific medications and treatments rather than a comprehensive recording of various patient data needed at regular intervals.