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Chapter 12: The Respiratory System deWit: Medical-Surgical Nursing: Concepts & Practice, 3rd Edition MULTIPLE CHOICE 1. What is the purpose of mucus? a. To warm the air entering the lungs. b. To trap particles and bacteria. c. To protect the cilia. d. To clean the sinus cavity. ANS: B Mucus traps particles and bacteria that may be in the inspired air. MEDICAL SURGICAL NURSING CONCEPTS AND PRACTICE 3RD EDITION DEWIT TEST BANK
PTS: 1 DIF: Cognitive Level: Analysis REF: 268 OBJ: 7 (clinical) TOP: Oxygen Administration to Emphysemic Patient KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Basic Care and Comfort 3. The nurse explains that the mechanism that triggers rate and depth of respiration is based on which factor?
PTS: 1 DIF: Cognitive Level: Comprehension REF: 254 OBJ: 2 (theory) TOP: Ventilation and Blood pH KEY: Nursing Process Step: Implementation NURSINGTB.COM
NURSINGTB.COM PTS: 1 DIF: Cognitive Level: Knowledge REF: 252 OBJ: 1 (theory) TOP: Mucus KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation 2. A patient with emphysema presents to the emergency room with severe dyspnea; O saturation is 74%, pulse is 120, and respirations are 26. The nurse positions the patient in high Fowler. What action should the nurse take next? 2
MSC: NCLEX: Physiological Integrity: Physiological Adaptation 4. When creating a visual aid to show the mechanics of inhaling, the nurse correctly illustrates which scenario? a. The diaphragm moves downward. b. The negative pressure of the lung converts to positive pressure. c. The muscles contract and pull the rib cage downward. d. The bronchi enlarge. ANS: A On inspiration, the diaphragm moves down, increasing the area of negative pressure, muscles pull the rib cage up, and the positive-pressure room air flows into the negative-pressure lungs.
NURSINGTB.COM PTS: 1 DIF: Cognitive Level: Comprehension REF: 254 OBJ: 1 (theory) TOP: Mechanics of Inspiration KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation

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