Chapter 13.docx - Chapter 13 The Respiratory System...

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Chapter 13: The Respiratory System MULTIPLE CHOICE 1. The nurse explains that the purpose of mucus is to: a. warm the air entering the lungs. b. trap particles and bacteria. c. protect the cilia. d. clean the sinus cavity. ANS: B Mucus traps particles and bacteria that may be in the inspired air.
DIF: Cognitive Level: Knowledge REF: 257 OBJ: 1 (theory) TOP: Mucus KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation 2. A patient with emphysema enters the emergency room with severe dyspnea; O2 saturation is 74%, pulse is 120, and respirations are 26. After positioning the patient in high Fowler’s, the nurse should:
DIF: Cognitive Level: Analysis REF: 272 OBJ: 2 (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:
Chemoreceptors in the brainstem and carotid arteries measure hydrogen concentration, as well as CO2 and O2, to trigger respiration rate to correct the excessive CO2. DIF: Cognitive Level: Comprehension REF: 259 OBJ: 2 (theory) TOP: Ventilation and Blood pH KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation 4. The nurse uses a visual aid to show the mechanics of inhaling which correctly illustrates:
DIF: Cognitive Level: Comprehension REF: 259 OBJ: 2 (theory) TOP: Mechanics of Inspiration KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation 5. The nurse explains that the substance that decreases the surface tension of the alveolar walls is: a. plasma. b. surfactant. c. cilia. d. mucus. ANS: B Surfactant is the substance that reduces the surface tension of the walls of the alveoli, making gas exchange more effective.
DIF: Cognitive Level: Comprehension REF: 259 OBJ: 1 (theory) TOP: Surfactant KEY: Nursing Process Step: Implementation MSC: NCLEX: Physiological Integrity: Physiological Adaptation 6. Using animation, the nurse demonstrates how most of the inspired oxygen is carried to the tissues by the:

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