ATI RN
ATI Pathophysiology Exam 2
1. In emphysema, what features result in impaired oxygenation?
- A. The bronchioles are inflamed and filled with mucus
- B. The alveoli have lost surfactant and collapse
- C. Enlarged, permanently inflated alveoli
- D. The accumulation of purulent fluid in the bronchioles
Correct answer: C
Rationale: The correct answer is C. In emphysema, impaired oxygenation results from enlarged and permanently inflated alveoli, leading to reduced surface area for gas exchange. Choices A, B, and D are incorrect. In emphysema, bronchioles are not typically filled with mucus, alveoli losing surfactant and collapsing is more characteristic of conditions like atelectasis, and purulent fluid accumulation in the bronchioles is commonly seen in conditions like pneumonia, not emphysema.
2. The nurse is assessing the colostomy of a client who has had an abdominal perineal resection for a bowel tumor. Which assessment finding indicates that the colostomy is beginning to function?
- A. The passage of flatus
- B. Absent bowel sounds
- C. The client’s ability to tolerate food
- D. Bloody drainage from the colostomy
Correct answer: A
Rationale: The passage of flatus (gas) from the colostomy is an early sign that the bowel is beginning to function after surgery. This indicates that peristalsis, or the movement of the intestines, has resumed and that the digestive system is actively moving gas and eventually stool through the bowel and out of the colostomy. It’s a positive sign that the bowel is recovering from the surgery and starting to work as intended.
3. When examining heredity, mental disorders are almost always ________
- A. influenced by one particular gene.
- B. influenced by multiple genes.
- C. influenced by recessive genes.
- D. not influenced by genes.
Correct answer: B
Rationale: When examining heredity, mental disorders are influenced by multiple genes. Mental disorders are complex conditions that typically result from a combination of genetic, environmental, and other factors. While genetics play a significant role in predisposing individuals to mental disorders, it is rare for a single gene to be solely responsible for a mental disorder. Therefore, choice B is correct. Choices A, C, and D are incorrect because mental disorders are not usually influenced by one particular gene, recessive genes specifically, or not influenced by genes at all.
4. What should be recommended to help prevent early childhood caries (ECC) in infants?
- A. Avoid giving the infant nighttime bottles
- B. Have the infant drink pasteurized skim milk
- C. Feed the infant iron-rich foods
- D. Give the infant fruit juice to drink
Correct answer: A
Rationale: The correct answer is 'A: Avoid giving the infant nighttime bottles' because prolonged exposure to sugars in milk during the night can lead to caries. Options 'B: Have the infant drink pasteurized skim milk' and 'D: Give the infant fruit juice to drink' are not recommended as they contain sugars that can cause cavities, especially in infants. Option 'C: Feed the infant iron-rich foods' is incorrect because while a balanced diet is important, iron-rich foods do not directly prevent caries development.
5. A client with a nasogastric tube receiving intermittent enteral feedings should be positioned in which way?
- A. Flush the tube with 15 mL of sterile water before feedings.
- B. Place the client in a supine position during feedings.
- C. Position the client with the head of the bed elevated 45 degrees.
- D. Check gastric residuals every 8 hours.
Correct answer: C
Rationale: Positioning the client with the head of the bed elevated at 45 degrees is crucial during enteral feedings to prevent aspiration. This position helps reduce the risk of regurgitation and aspiration of feedings into the lungs. Option A is not necessary before feedings. Placing the client in a supine position (Option B) increases the risk of aspiration. Checking gastric residuals every 8 hours (Option D) is important but not directly related to positioning during enteral feedings.
Similar Questions
Access More Features
ATI Basic
- 50,000 Questions with answers
- All ATI courses Coverage
- 30 days access @ $69.99
ATI Basic
- 50,000 Questions with answers
- All ATI courses Coverage
- 90 days access @ $149.99