ATI RN
Nutrition ATI Proctored Exam
1. Which type of fatty acid has carbon atoms connected by two or more double bonds?
- A. Saturated fatty acids
- B. Monounsaturated fatty acids
- C. Trans fatty acids
- D. Polyunsaturated fatty acids
Correct answer: D. Polyunsaturated fatty acids
Rationale: The correct answer is D. Polyunsaturated fatty acids. Polyunsaturated fatty acids have two or more double bonds in their carbon chains, making them less stable and more prone to oxidation. This characteristic distinguishes them from saturated fatty acids (Choice A), which have single bonds between carbon atoms providing stability. Monounsaturated fatty acids (Choice B) contain only one double bond, and trans fatty acids (Choice C) can have varying numbers of double bonds but are not specifically defined by having two or more double bonds.
2. A nurse is giving dietary instructions to a client who has a new colostomy. The nurse encourages the client to eat foods representing which of the following diets for the first 4 to 6 weeks postoperatively?
- A. High-protein
- B. High-carbohydrate
- C. Low-calorie
- D. Low-residue
Correct answer: D
Rationale: For the first 4 to 6 weeks following colostomy formation, the client should take in a low-residue diet. Following this period, the client should eat a high-carbohydrate, high-protein diet. The nurse also instructs the client to add new foods, one at a time, to determine tolerance to that food.
3. A client with liver dysfunction is having difficulty with protein metabolism. The nurse anticipates that the results of which of the following serum laboratory studies will be elevated?
- A. Lactic acid
- B. Ammonia
- C. Albumin
- D. Lactase
Correct answer: B
Rationale: During deamination of proteins, the liver splits the amino group from the carbon-containing compound, which results in the formation of ammonia and a carbon residue. The liver then converts the toxic ammonia substance into urea, which can be excreted by the kidneys. Clients with liver dysfunction may have high serum ammonia levels as a result.
4. A nurse is caring for a client who has an indwelling urinary catheter and a prescription for a urine specimen for culture and sensitivity. Which of the following actions should the nurse take?
- A. Wipe the area around the needleless port with sterile water
- B. Insert the syringe into the needleless port at a 60-degree angle
- C. Withdraw 3 to 5 ml of urine from the port
- D. Don sterile gloves
Correct answer: C
Rationale: The correct action for the nurse to take is to withdraw 3 to 5 ml of urine from the port for an accurate culture and sensitivity test. Wiping the area around the needleless port with sterile water (Choice A) is not necessary when obtaining a urine specimen. Inserting the syringe into the needleless port at a 60-degree angle (Choice B) is incorrect as it does not align with the correct procedure for obtaining a urine specimen. Donning sterile gloves (Choice D) is a good practice but not the immediate action required for obtaining a urine specimen.
5. A healthcare provider is reviewing the laboratory data of a client who is receiving total parenteral nutrition. Which of the following findings should the healthcare provider report?
- A. Serum calcium 8.5 mg/dL
- B. Blood glucose level 120 mg/dL
- C. Serum sodium 138 mEq/L
- D. Serum albumin 3.5 g/dL
Correct answer: D
Rationale: The correct answer is D: Serum albumin 3.5 g/dL. A low serum albumin level indicates protein deficiency, which can be a complication of TPN therapy and requires prompt intervention. The other laboratory findings provided (serum calcium 8.5 mg/dL, blood glucose level 120 mg/dL, and serum sodium 138 mEq/L) are within normal ranges and do not specifically indicate complications related to TPN therapy.