Nokea
during rest state normal breathing called
- A. Breathing
- B. diaphragmatic
- C. Diaphragmatic breathing
- D. non
Correct Answer: C
Rationale: The correct answer is C: Diaphragmatic breathing. During rest, normal breathing involves the diaphragm contracting and moving downward to draw air into the lungs. This type of breathing is known as diaphragmatic breathing. Choice A (Breathing) is too broad and does not specify the involvement of the diaphragm. Choice B (Diaphragmatic) does not fully describe the process of breathing during rest. Choice D (Non) is incorrect as it does not provide any information related to the breathing process during rest state. Therefore, C is the most accurate choice as it specifically identifies the type of breathing that occurs during rest.
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Asthma is caused due to
- A. Infection of trachea
- B. Infection of lungs
- C. Bleeding into pleural cavity
- D. Spasm in bronchial muscles
Correct Answer: D
Rationale: The correct answer is D: Spasm in bronchial muscles. Asthma is a chronic respiratory condition characterized by inflammation and narrowing of the airways, leading to difficulty breathing. Bronchial muscles in the airways undergo spasms, causing constriction and making it hard to breathe. Infection of the trachea (A) or lungs (B) may lead to respiratory symptoms but is not the primary cause of asthma. Bleeding into the pleural cavity (C) is unrelated to the pathophysiology of asthma. Therefore, the correct answer is D as it directly correlates with the underlying mechanism of asthma.
The volume of air that can be exhaled after normal exhalation is the
- A. tidal volume
- B. residual volume
- C. inspiratory reserve volume
- D. expiratory reserve volume
Correct Answer: D
Rationale: The correct answer is D: expiratory reserve volume. After normal exhalation (tidal volume), the expiratory reserve volume represents the additional volume of air that can be forcefully exhaled. This volume is used during activities requiring increased breathing effort. Choices A and C are incorrect because tidal volume is the volume of air inhaled or exhaled during normal breathing, and inspiratory reserve volume is the extra volume of air that can be inhaled after a normal inhalation. Choice B, residual volume, is the volume of air remaining in the lungs after maximal exhalation and cannot be exhaled voluntarily.
When the nurse reads the diagnosis of centrilobar emphysema, the nurse recognizes that this type of emphysema is characterized by:
- A. No significant smoking history in the patient.
- B. Enlarged and broken down bronchioles, with intact alveoli.
- C. Hypoelastic bronchi and bronchioles.
- D. Deficiency of the enzyme inhibitor alpha "“ antitrypsin.
Correct Answer: B
Rationale: The correct answer is B because centrilobar emphysema is characterized by enlarged and broken down bronchioles with intact alveoli. This type of emphysema primarily affects the respiratory bronchioles and alveolar ducts in the upper lung lobes. The other choices are incorrect because: A) Significant smoking history is usually present in patients with centrilobar emphysema. C) Hypoelastic bronchi and bronchioles are not characteristic of centrilobar emphysema. D) Deficiency of the enzyme inhibitor alpha-1 antitrypsin is associated with a different type of emphysema called panlobar emphysema, not centrilobar emphysema.
Which form of epithelial tissue may be found in the upper respiratory system (URS)?
- A. pseudostratified ciliated columnar epithelium.
- B. moist cuboidal epithelium.
- C. simple squamous epithelium.
- D. stratified squamous epithelium.
Correct Answer: A
Rationale: Step 1: The upper respiratory system requires protection and mucus secretion.
Step 2: Pseudostratified epithelium provides protection and has cilia for moving mucus.
Step 3: Ciliated columnar cells help sweep mucus and debris out of the respiratory tract.
Step 4: Therefore, pseudostratified ciliated columnar epithelium is the correct choice.
Summary:
B: Moist cuboidal epithelium lacks cilia and isn't specialized for mucus clearance.
C: Simple squamous epithelium is too thin and fragile for protection.
D: Stratified squamous epithelium is more suited for areas with high mechanical stress.
The lungs move easily within their protective sacs due to
- A. intrapleural fluid.
- B. leaking plasma.
- C. blood.
- D. mucus.
Correct Answer: A
Rationale: The correct answer is A: intrapleural fluid. Intrapleural fluid reduces friction between the lungs and the chest wall, allowing them to move easily during breathing. This fluid creates a lubricated surface that facilitates smooth movement. Leaking plasma (B) and mucus (D) do not provide the necessary lubrication for lung movement. Blood (C) plays a role in oxygen exchange but does not directly contribute to the ease of lung movement within the pleural sacs.