the substance that activates pepsinogen to pepsin is the substance that activates pepsinogen to pepsin is
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ATI LPN

Nutrition For PN Nursing ATI

1. What substance activates pepsinogen to pepsin?

Correct answer: D

Rationale: The correct answer is D: Hydrochloric acid. Hydrochloric acid in the stomach plays a crucial role in converting pepsinogen into its active form, pepsin, which is necessary for digesting proteins. Bile (Choice A) is involved in the emulsification of fats, not in the activation of pepsinogen. Gastrin (Choice B) is a hormone that stimulates the secretion of gastric acid but does not directly activate pepsinogen. Secretin (Choice C) is a hormone that regulates the pH of the duodenum but is not responsible for the activation of pepsinogen.

2. A 45-year-old obese man arrives at a clinic reporting daytime sleepiness, difficulty falling asleep at night, and snoring. The nurse should recognize the manifestations of what health problem?

Correct answer: C

Rationale: The symptoms described, including daytime sleepiness, difficulty falling asleep at night, and snoring, are classic signs of obstructive sleep apnea. This condition is commonly seen in obese individuals due to the relaxation of throat muscles during sleep, leading to airway obstruction. Adenoiditis and chronic tonsillitis are less likely as they don't typically present with the same symptoms mentioned.

3. While assisting with the care of an infant with a high bilirubin level receiving phototherapy, which finding should the nurse prioritize for reporting to the charge nurse?

Correct answer: C

Rationale: Sunken fontanels should be prioritized for reporting as they indicate dehydration, which is a critical concern in infants undergoing phototherapy. Dehydration can lead to serious complications, making it essential for the nurse to promptly inform the charge nurse for appropriate intervention and management. Conjunctivitis, bronze skin discoloration, and maculopapular skin rash are important findings to note, but in this scenario, sunken fontanels take precedence due to the potential severity of dehydration in infants.

4. In contrast to the contractions associated with true labor, Braxton-Hicks contractions:

Correct answer: C

Rationale: Braxton-Hicks contractions are irregular and usually do not increase in intensity. Unlike true labor contractions, they tend to alleviate with a change in position, making option C the correct choice. Choices A, B, and D are incorrect because Braxton-Hicks contractions do not follow rupture of the amniotic sac, are not intensified by activity or accompanied by a pink discharge, and do not consistently become stronger or are not alleviated by changing position.

5. Which assessment finding indicates a client's readiness to leave the nursing unit for a bronchoscopy?

Correct answer: C

Rationale: Administering on-call sedation is crucial before a bronchoscopy to ensure the client is comfortable and adequately prepared for the procedure. Sedation helps reduce anxiety, discomfort, and ensures the client remains still during the bronchoscopy, enabling the healthcare provider to perform the procedure effectively.

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