which is most likely to initiate periodontal disease

ATI RN

ATI RN Nutrition Online Practice 2019

1. Which is most likely to initiate periodontal disease?

A. Nutrient deficiencies
B. Nutrient excesses
C. Nutrient imbalances
D. Plaque biofilm

Correct answer: D

Rationale: Plaque biofilm is the primary initiator of periodontal disease, as it harbors bacteria that can lead to inflammation and destruction of the periodontal tissues.

2. Which nutrient is most important for maintaining fluid balance in the body?

A. Protein
B. Sodium
C. Calcium
D. Vitamin C

Correct answer: B

Rationale: Sodium plays a key role in maintaining fluid balance and regulating blood pressure.

3. Which of the following proteins is iron a component of, responsible for the transport of oxygen in the bloodstream?

A. hemoglobin
B. transferrin
C. myoglobin
D. hepcidin

Correct answer: A

Rationale: The correct answer is A: hemoglobin. Hemoglobin is the protein found in red blood cells that is responsible for carrying oxygen from the lungs to the rest of the body. Iron is a crucial component of hemoglobin, binding to oxygen and allowing for its transport. Choice B, transferrin, is involved in iron transport in the blood but not in oxygen transport. Choice C, myoglobin, is a protein found in muscle cells that stores oxygen for muscle use, not transportation in the bloodstream. Choice D, hepcidin, is a peptide hormone that regulates iron absorption in the intestines and iron distribution in the body, but it is not directly involved in oxygen transport.

4. A client is experiencing sleep disturbances and desires to decrease caffeine intake. Which of the following beverages should the nurse recommend?

A. Lemon-lime soda
B. Brewed iced tea
C. Diet cola
D. Chocolate milk

Correct answer: B

Rationale: The nurse should recommend brewed iced tea as it generally contains less caffeine compared to other choices. Lemon-lime soda, diet cola, and chocolate milk all contain caffeine, which can contribute to sleep disturbances. Lemon-lime soda and diet cola are carbonated beverages that typically contain caffeine unless specified as caffeine-free. Chocolate milk also contains caffeine due to the cocoa content. Therefore, brewed iced tea is the most suitable choice to reduce caffeine intake and improve sleep quality.