Nokea
Which of the following statements is TRUE? The protein FOXO1:
- A. activates (increases the expression of) genes related to greater longevity
- B. is activated by caloric restriction
- C. is deactivated by increased insulin signalling
- D. all of the above are true
Correct Answer: D
Rationale: Step-by-step rationale:
1. FOXO1 activates genes related to greater longevity by regulating stress responses and promoting cell survival.
2. Caloric restriction activates FOXO1 to promote cellular stress resistance and increase lifespan.
3. Increased insulin signaling deactivates FOXO1, leading to decreased stress resistance and potentially shorter lifespan.
4. Therefore, all the statements (A, B, and C) are true regarding the protein FOXO1. It plays a crucial role in longevity through gene regulation, is activated by caloric restriction, and is deactivated by increased insulin signaling.
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Where is the majority of absorption of nutrients in the digestive tract?
- A. stomach
- B. small intestine
- C. large intestine
- D. mouth
Correct Answer: B
Rationale: The majority of absorption of nutrients occurs in the small intestine. This is because the small intestine has a large surface area due to its villi and microvilli, which increase the absorption capacity. Additionally, the small intestine contains specialized cells that facilitate the absorption of nutrients into the bloodstream. In contrast, the stomach's main function is to break down food, the large intestine primarily absorbs water and electrolytes, and the mouth is responsible for initial digestion through chewing and saliva production. Therefore, choice B is correct as it aligns with the anatomical and physiological functions of the digestive system.
Which of the following dietary interventions should a nurse consider after the removal of the nasogastric tube in a client who has undergone surgery for a liver disorder?
- A. Provide small sips of clear liquids
- B. Provide small sips of fruit juice or soup
- C. Provide small meal of soft foods
- D. Provide meal of protein-rich foods
Correct Answer: A
Rationale: After NG tube removal, clear liquids are introduced first to assess tolerance and prevent nausea or complications.
Priority Decision: Before administering a bolus of intermittent tube feeding to a patient with a percutaneous endoscopic gastrostomy (PEG), the nurse aspirates 220 mL of gastric contents. How should the nurse respond?
- A. Return the aspirate to the stomach and recheck the volume of aspirate in an hour.
- B. Return the aspirate to the stomach and continue with the tube feeding as planned.
- C. Discard the aspirate to prevent overdistending the stomach when the new feeding is given.
- D. Notify the health care provider that the feedings have been scheduled too frequently to allow for stomach emptying
Correct Answer: B
Rationale: Returning the aspirate to the stomach and continuing the feeding is standard practice as long as the volume is within safe limits.
You are caring for a client with a nasogastric (NG) tube. Which task can be delegated to the experienced nursing assistant?
- A. Remove the NG tube per physician order.
- B. Secure the tape if the client accidentally dislodges the tube.
- C. Disconnect the suction to allow ambulation to the toilet.
- D. Reconnect the suction after the client has ambulated.
Correct Answer: B
Rationale: Securing the tape is a non-invasive task within the scope of a nursing assistant. Removing or reconnecting requires nursing assessment and should be done by licensed staff.
Which finding by the nurse during abdominal auscultation indicates a need for a focused abdominal assessment?
- A. Loud gurgles
- B. High-pitched gurgles
- C. Absent bowel sounds
- D. Frequent clicking sounds
Correct Answer: C
Rationale: The correct answer is C, absent bowel sounds. Absence of bowel sounds may indicate a serious issue requiring further assessment. Normal bowel sounds include soft gurgles and clicks, so choices A, B, and D are variations of normal findings and do not necessarily indicate a need for further assessment. Absent bowel sounds could indicate bowel obstruction, peritonitis, or ischemia, warranting a focused abdominal assessment to determine the underlying cause.