Nokea
Plastron is the air bubble carrying respiratory air in the abdomen of
- A. Belostoma
- B. Nepa (Water boat man)
- C. Chironomous
- D. Mosquito
Correct Answer: B
Rationale: The correct answer is B: Nepa (Water boat man). Plastron is an air bubble that aquatic insects such as Nepa carry to respire underwater. Belostoma and Chironomous do not have plastrons. Mosquitoes breathe through a siphon, not a plastron. Therefore, the correct answer is B.
You may also like to solve these questions
For a female patient with chronic obstructive pulmonary disease, which nursing intervention would help maintain a patent airway?
- A. Restricting fluid intake to 1,000 ml per day.
- B. Enforcing absolute bed rest.
- C. Teaching the patient how to perform controlled coughing.
- D. Administering prescribed sedatives regularly and in large amounts.
Correct Answer: C
Rationale: The correct answer is C: Teaching the patient how to perform controlled coughing. This intervention helps to clear mucus and secretions from the airways, maintaining a patent airway. Controlled coughing also prevents airway obstruction and promotes effective breathing. Restricting fluid intake (A) can lead to dehydration and thickening of secretions, worsening airway clearance. Enforcing bed rest (B) can cause decreased lung expansion and retention of secretions. Administering sedatives (D) can depress respiratory drive and worsen respiratory function.
A female client must take streptomycin for tuberculosis. Before therapy begins, the nurse should instruct the client to notify the physician if a health concern occurs?
- A. Impaired color discrimination
- B. Increased urinary frequency
- C. Decreased hearing acuity
- D. Increased appetite
Correct Answer: C
Rationale: The correct answer is C: Decreased hearing acuity. Streptomycin is known to cause ototoxicity, which can lead to decreased hearing acuity. Therefore, the nurse should instruct the client to notify the physician if any changes in hearing occur to prevent permanent hearing loss. Impaired color discrimination (A) and increased appetite (D) are not commonly associated with streptomycin use. Increased urinary frequency (B) is not a typical side effect of streptomycin and would not require immediate physician notification.
The maximum amount of air that can be taken into the lungs in a single deep breath is the
- A. vital capacity.
- B. tidal volume
- C. pleural volume.
- D. alveolar volume.
Correct Answer: A
Rationale: The correct answer is A: vital capacity. Vital capacity is the maximum amount of air a person can exhale after taking the deepest breath possible. It is calculated by adding tidal volume, inspiratory reserve volume, and expiratory reserve volume together. This measurement reflects the maximum lung capacity and is important in assessing lung function. Tidal volume (B) is the amount of air inhaled and exhaled during normal breathing cycles. Pleural volume (C) refers to the space between the lungs and the chest wall. Alveolar volume (D) is the amount of air in the alveoli available for gas exchange. These choices are incorrect as they do not represent the maximum air intake capacity of the lungs.
After receiving a change-of-shift report on four patients admitted to a heart failure unit ,which patient should the nurse assess first?
- A. A patient who reported dizziness after receiving the first dose of captopril.
- B. A patient who has new-onset confusion and restlessness and cool clammy skin.
- C. A patient who is receiving IV nesiritide (Natrecor)
- D. A patient who is receiving oxygen and has crackles bilaterally in the lung bases.
Correct Answer: B
Rationale: The correct answer is B because new-onset confusion, restlessness, and cool clammy skin are signs of poor perfusion and potential deterioration. The nurse should assess this patient first to address possible acute changes in condition. Option A, dizziness after captopril, can be important but not immediately life-threatening. Option C receiving IV nesiritide is stable and monitored closely. Option D with oxygen and crackles indicates pulmonary congestion but is not an immediate priority compared to the signs of poor perfusion in option B.
A nurse is caring for a client with acute respiratory distress syndrome. Which of the following would the nurse expect to note in the client?
- A. Decreased respiratory rate.
- B. Pallor.
- C. Low arterial PaO2.
- D. An elevated arterial PaO2.
Correct Answer: C
Rationale: The correct answer is C: Low arterial PaO2. In acute respiratory distress syndrome (ARDS), there is impaired gas exchange leading to hypoxemia. Low arterial PaO2 indicates poor oxygenation in the blood, a hallmark of ARDS. Decreased respiratory rate (A) is unlikely as the body compensates by increasing respiratory effort. Pallor (B) is a general sign of reduced blood flow and not specific to ARDS. An elevated arterial PaO2 (D) would not be expected in ARDS, as it signifies adequate oxygenation.