ATI RN
Questions About the Respiratory System With Answers Questions
Question 1 of 5
In humans ventilation is powered by
Correct Answer: D
Rationale: The correct answer is D because ventilation in humans is powered by the diaphragm and muscles attached to the ribs working together. The diaphragm contracts during inhalation, increasing the volume of the thoracic cavity, while the external intercostal muscles lift the rib cage, expanding the chest cavity. This creates a pressure difference, causing air to move into the lungs. The other choices are incorrect because the lungs themselves do not have the ability to power ventilation independently, and muscles attached to the ribs are essential for chest expansion during breathing.
Question 2 of 5
In mammals, the body cavity is partitioned into thoracic and abdominal parts by
Correct Answer: D
Rationale: The correct answer is D: Diaphragm. The diaphragm is a dome-shaped muscle that separates the thoracic and abdominal cavities in mammals. It contracts during inhalation, expanding the thoracic cavity and allowing the lungs to fill with air. This physiological function clearly demonstrates that the diaphragm is the structure responsible for partitioning the body cavity. A: Liver - The liver is located in the abdominal cavity and does not partition the thoracic and abdominal cavities. B: Lungs - Lungs are organs within the thoracic cavity but do not partition the two cavities. C: Ribs - Ribs protect the thoracic organs but do not partition the body cavity into thoracic and abdominal regions.
Question 3 of 5
In the process of transport of CO2 which phenomenon occurs between RBCs and plasma
Correct Answer: C
Rationale: The correct answer is C: Chloride shift. During the transport of CO2, carbonic anhydrase in RBCs converts CO2 to bicarbonate ions. To maintain electrochemical neutrality, chloride ions move into RBCs as bicarbonate ions move out into plasma (Chloride Shift). Osmosis (A) involves the movement of water across a semi-permeable membrane, not relevant to CO2 transport. Adsorption (B) refers to the adhesion of molecules to a surface, not a process between RBCs and plasma in CO2 transport. Absorption (D) typically involves the uptake of substances into a bulk material, not applicable to the interaction between RBCs and plasma in CO2 transport.
Question 4 of 5
A nurse prepares a client who is scheduled for a bronchoscopy with transbronchial biopsy procedure at 9:00 AM (0900). What actions would the nurse NOT take?
Correct Answer: A
Rationale: Correct Answer: A - Provide a clear liquid breakfast. Rationale: Preparing a client for a bronchoscopy with transbronchial biopsy involves NPO (nothing by mouth) after midnight to prevent aspiration during the procedure. Providing a clear liquid breakfast contradicts the NPO status required. Summary: - B: Verifying informed consent is essential to ensure the client understands the procedure and consents to it. - C: Documenting allergies is important to prevent any adverse reactions during the procedure. - D: Reviewing laboratory results is necessary to ensure the client's readiness for the procedure.
Question 5 of 5
A nurse cares for a client who is scheduled for a total laryngectomy. What action would the nurse take prior to surgery?
Correct Answer: C
Rationale: The correct answer is C because assisting the client to choose a communication method is crucial before a total laryngectomy surgery as it will help in ensuring effective communication post-surgery. This step is essential to address the potential communication challenges the client may face after the laryngectomy. Assessing airway patency, breathing, and circulation (Choice A) is important but typically occurs as part of routine preoperative assessments and is not specific to laryngectomy. Administering pain medication (Choice B) is not a priority before surgery and should be done as per the prescribed protocol post-surgery. Ambulating the client (Choice D) is not directly related to the specific needs of a client undergoing a total laryngectomy.