Sarah, a 32-year-old non-smoker, presents with bronchospasm due to inhaling cold air during her morning run. Which reflex mechanism is being triggered?
Alveolar macrophages
Mucociliary clearance system
Reflex bronchoconstriction
Filtration of air
The Correct Answer is C
A. Alveolar macrophages are involved in immune defense within the lungs but are not directly responsible for bronchospasm.
B. This system helps remove mucus and trapped particles from the airways but does not directly cause bronchospasm.
C. Exposure to cold air can trigger reflex bronchoconstriction as a protective mechanism to prevent the entry of cold air into the lungs.
D. Filtration of air occurs primarily in the upper airways and does not directly relate to bronchospasm triggered by cold air inhalation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Assessing the size and shape of the testicles can be part of a genital examination but is not the primary reason for asking David to bear down.
B. Asking David to bear down increases intra-abdominal pressure, making it easier to detect hernias in the inguinal ring and canal.
C. Checking for the presence of lumps in the scrotum may be part of the examination but is not the primary reason for asking David to bear down.
D. Evaluating the character and distribution of pubic hair is not related to detecting hernias and is not the primary reason for asking David to bear down.
Correct Answer is D
Explanation
A. While position changes are important, maintaining proper head positioning is crucial for managing increased intracranial pressure (ICP).
B. While assessing the patient's level of consciousness is important, excessive stimulation can increase ICP.
C. Keeping the patient flat can exacerbate increased ICP, and elevation of the head is preferred.
D. Elevating the head of the bed helps promote venous drainage from the brain and can reduce ICP.
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