Nokea
A female client is undergoing a complete physical examination as a requirement for college. When checking the client's respiratory status, the nurse observes respiratory excursion to help assess:
- A. Lung vibrations
- B. Vocal sounds
- C. Breath sounds
- D. Chest movements.
Correct Answer: D
Rationale: The correct answer is D: Chest movements. When checking respiratory status, observing chest movements, known as respiratory excursion, helps assess the depth and symmetry of breathing. This provides valuable information about lung expansion and function. Lung vibrations (A) are assessed by tactile fremitus, vocal sounds (B) by auscultating for voice sounds, and breath sounds (C) by listening for air movement in the lungs. However, these do not directly assess respiratory excursion.
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The partial pressure of oxygen in arterial blood is approximately
- A. 40 mm Hg
- B. 100 mm Hg
- C. 50 mm Hg
- D. 70 mm Hg
Correct Answer: B
Rationale: The correct answer is B: 100 mm Hg. In arterial blood, the partial pressure of oxygen is typically around 100 mm Hg due to the oxygen-rich environment in the lungs. This value represents the pressure exerted by oxygen molecules in the blood. Choices A, C, and D are incorrect because they do not align with the normal range of oxygen partial pressure in arterial blood, which is around 100 mm Hg. Option A is too low, option C is slightly below the normal range, and option D is slightly above the normal range. Therefore, B is the most accurate representation of the typical partial pressure of oxygen in arterial blood.
The impulse for voluntary muscles for forceful breathing starts in
- A. Medulla (Pons)
- B. Vagus nerve
- C. Cerebral hemispheres
- D. Spinal cord
Correct Answer: C
Rationale: The correct answer is C: Cerebral hemispheres. The impulse for voluntary muscles for forceful breathing originates in the cerebral hemispheres where conscious control over breathing is regulated. The cerebral cortex sends signals to the respiratory muscles to increase or decrease breathing effort based on the body's needs. The other choices are incorrect because:
A: Medulla (Pons) - This region of the brainstem is responsible for automatic breathing control, not voluntary forceful breathing.
B: Vagus nerve - The vagus nerve is not directly involved in initiating voluntary breathing movements.
D: Spinal cord - While the spinal cord plays a role in coordinating some aspects of breathing, it is not the primary center for voluntary forceful breathing control.
Most of the carbon dioxide produced by the body is transported to the lungs in
- A. a gaseous form
- B. blood plasma.
- C. potassium carbonate ions.
- D. bicarbonate ions.
Correct Answer: D
Rationale: The correct answer is D: bicarbonate ions. When carbon dioxide is produced by the body, it combines with water in the blood to form carbonic acid. This carbonic acid then dissociates into bicarbonate ions and hydrogen ions. The majority of the carbon dioxide is transported in the blood as bicarbonate ions, which are more soluble and can easily travel to the lungs where they are converted back into carbon dioxide for exhalation. Choices A, B, and C are incorrect because carbon dioxide is primarily transported in the form of bicarbonate ions, not as a gas, in blood plasma, or as potassium carbonate ions.
A nurse is caring for a client who had a modified uvulopalatopharyngoplasty (modUPPP) earlier in the day for obstructive sleep apnea. Which assessment finding indicates that a priority goal has been met?
- A. Client reports pain is controlled satisfactorily with analgesic regime.
- B. Client does not have foul odor to the breath or beefy red mucus membranes.
- C. Client is able to swallow own secretions without drooling.
- D. Client's vital signs are within normal parameters.
Correct Answer: C
Rationale: Rationale:
The correct answer is C because the ability to swallow own secretions without drooling indicates that the client's airway is patent and functional post modUPPP, a priority goal for this procedure. This assessment finding ensures that the client can maintain a clear airway and prevent complications such as aspiration.
Incorrect choices:
A: Although pain control is important, it is not a priority assessment for this specific procedure.
B: Absence of foul odor or red mucus membranes is not directly related to the airway patency or swallowing ability.
D: While normal vital signs are reassuring, they do not directly indicate the success of the surgery in improving airway function.
Comiculate are the paired cartilage of pharynx in which shape
- A. club shape
- B. horn shape
- C. Bate shape
- D. butterfly shape
Correct Answer: B
Rationale: The correct answer is B: horn shape. The corniculate cartilages are small, horn-shaped structures located on the apex of the arytenoid cartilages in the larynx. These cartilages play a role in supporting the vocal folds. The other choices (A, C, D) are incorrect because the corniculate cartilages are not club-shaped, bate-shaped, or butterfly-shaped. It is crucial to understand the anatomical structure and function of the corniculate cartilages to identify the correct shape accurately.