ATI RN
Exam Questions on Respiratory System Questions
Question 1 of 5
Oxygen dissociation curve of myoglobin is
Correct Answer: B
Rationale: The correct answer is B: Hyperbolic. Myoglobin exhibits a hyperbolic oxygen dissociation curve due to its high affinity for oxygen, allowing it to bind oxygen quickly and efficiently at low partial pressures. This curve represents a simple one-to-one binding relationship between myoglobin and oxygen. The other choices are incorrect because A (Hypobolic) does not accurately describe myoglobin's binding characteristics, C (Linear) is not representative of the typical oxygen binding behavior of myoglobin, and D (Sigmoid) is more characteristic of hemoglobin, which exhibits cooperative binding of oxygen.
Question 2 of 5
A home health nurse is visiting a new client who uses oxygen in the home. For which factors doesn't the nurse assess when determining if the client is using the oxygen safely?
Correct Answer: D
Rationale: The correct answer is D because household light bulbs being fluorescent type is unrelated to the safe use of oxygen. The nurse should assess factors directly related to oxygen safety, such as smoking restrictions, electrical cord condition, and proper storage of flammable materials. Fluorescent light bulbs do not pose a significant risk in relation to oxygen safety.
Question 3 of 5
A client has been diagnosed with tuberculosis (TB). What action by the nurse takes highest priority?
Correct Answer: A
Rationale: The correct answer is A because educating the client on adherence to the treatment regimen is the top priority in managing TB. This is crucial to prevent the spread of the disease and ensure successful treatment. Choice B is important for overall health but not the priority. Choice C is important but comes after starting treatment. Choice D is also important but does not directly impact the treatment outcome for TB.
Question 4 of 5
Why may an ice collar be ordered for a client who is undergoing drainage of a peritonsillar abscess?
Correct Answer: A
Rationale: The correct answer is A. An ice collar reduces swelling and pain by constricting blood vessels and numbing the area. B (helping the client drink fluids) is unrelated. C (preventing respiratory obstruction) is not the primary purpose of an ice collar. D (preventing excessive bleeding) is managed differently, usually with direct pressure or medication.
Question 5 of 5
For which client(s) would you assign the nursing care to the new RN under your supervision? (Choose all that apply.)
Correct Answer: D
Rationale: The correct answer includes A and D. Assigning care for clients with moderate persistent asthma (A) and a new diagnosis of esophageal cancer (D) is appropriate for a new RN under supervision. Clients requiring tracheostomy care (B) or post-lobectomy recovery (C) involve complex care unsuitable for a new RN.