ATI RN
Physical Exam Cardiovascular System
1. What are the pressure-sensitive structures located in the aortic and carotid bodies called?
- A. Baroreceptors
- B. Chemoreceptors
- C. Nociceptors
- D. Mechanoreceptors
Correct answer: A
Rationale: Baroreceptors are the correct answer. Baroreceptors are specialized sensory receptors that detect changes in pressure within blood vessels. They are primarily located in the aortic arch and carotid sinuses, where they play a crucial role in regulating blood pressure. Chemoreceptors (Choice B) are receptors that detect chemical changes, not pressure changes. Nociceptors (Choice C) are responsible for detecting painful stimuli. Mechanoreceptors (Choice D) respond to mechanical stimuli such as touch, pressure, and vibration, but they are not specifically located in the aortic and carotid bodies.
2. What is the primary focus of secondary prevention in community mental health care?
- A. Teaching stress-reduction techniques
- B. Early detection of mental illness
- C. Leading support groups for clients with substance use disorder
- D. Rehabilitation and prevention of further issues
Correct answer: B
Rationale: The correct answer is B: Early detection of mental illness. Secondary prevention in community mental health care focuses on identifying mental health issues at an early stage to provide timely interventions. Choice A, teaching stress-reduction techniques, is more aligned with primary prevention aimed at preventing the onset of mental health problems. Choice C, leading support groups for clients with substance use disorder, pertains more to providing specific interventions for individuals with substance use issues rather than the general focus of secondary prevention. Choice D, rehabilitation and prevention of further issues, is more related to tertiary prevention, which involves addressing existing mental health conditions and preventing complications or recurrence.
3. The nurse is preparing to discontinue a client’s nasogastric tube. The client is positioned properly, and the tube has been flushed with 15 mL of air to clear secretions. Before removing the tube, the nurse makes which statement to the client?
- A. Take a deep breath when I tell you and breathe normally while I remove the tube.
- B. Take a deep breath when I tell you and bear down while I remove the tube.
- C. Take a deep breath when I tell you and slowly exhale while I remove the tube.
- D. Take a deep breath when I tell you and hold it while I remove the tube.
Correct answer: C
Rationale: The client should take a deep breath because the client’s airway will be obstructed temporarily during tube removal. The nurse then tells the client to exhale slowly and withdraws the tube during exhalation. Bearing down could inhibit the removal of the tube. Breathing normally could result in aspiration of gastric secretions during inhalation. Holding the breath does not facilitate tube removal.
4. Which artery supplies the anterior wall of the left ventricle, the anterior interventricular septum, the anterior papillary muscles, and apex of the heart?
- A. Left anterior descending artery
- B. Left circumflex artery
- C. Posterior descending artery
- D. Aortic artery
Correct answer: A
Rationale: The correct answer is the Left anterior descending artery. This artery supplies the anterior wall of the left ventricle, the anterior interventricular septum, the anterior papillary muscles, and apex of the heart. The Left circumflex artery (choice B) supplies the lateral and posterior walls of the left ventricle, the posterior descending artery (choice C) supplies the inferior part of the heart, and the aortic artery (choice D) is not a specific coronary artery.
5. Each is a characteristic manifestation of necrotizing ulcerative gingivitis (NUG), except one. Which is the exception?
- A. Gingival erythema
- B. Necrosis of interdental papilla
- C. Marasmus
- D. Metallic taste and foul odor
Correct answer: C
Rationale: The correct answer is C: Marasmus. Marasmus is a form of severe malnutrition and is not a direct manifestation of necrotizing ulcerative gingivitis (NUG). Choices A, B, and D are all characteristic manifestations of NUG. Gingival erythema, necrosis of interdental papilla, and metallic taste with foul odor are commonly associated with NUG due to the inflammatory and necrotic nature of the condition.
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