Nokea
The most common preventive drug therapy for tuberculosis is:
- A. Prednisone.
- B. Isoniazid.
- C. Gamma globulin.
- D. Aminophylline.
Correct Answer: B
Rationale: The correct answer is B: Isoniazid. Isoniazid is the most common preventive drug therapy for tuberculosis due to its effectiveness in treating latent TB infections. It works by killing the bacteria that cause TB. Prednisone is a steroid and not used as a preventive therapy for TB. Gamma globulin is used for immune deficiency disorders, not TB prevention. Aminophylline is a bronchodilator used for asthma, not TB prevention. In summary, isoniazid is the preferred choice for TB prevention due to its specific antimycobacterial action, while the other options are unrelated or ineffective for this purpose.
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A nurse auscultates a harsh hollow sound over a client's trachea and larynx. What action would the nurse take first?
- A. Document the findings.
- B. Administer oxygen therapy.
- C. Position the client in high-Fowler position.
- D. Administer prescribed albuterol.
Correct Answer: A
Rationale: The correct action is to document the findings first because the harsh hollow sound over the trachea and larynx could indicate a potential issue with the airway or respiratory function. Documenting the findings allows for accurate communication with other healthcare providers and helps track changes in the client's condition. Administering oxygen therapy or albuterol should not be done without further assessment or orders from a healthcare provider. Positioning the client in high-Fowler position may not be the priority until a more thorough assessment is completed.
The ________ circulation picks up oxygen for cellular use and drops off carbon dioxide for removal from the body.
- A. pulmonary
- B. interlobular
- C. respiratory
- D. bronchial
Correct Answer: A
Rationale: The correct answer is A: pulmonary. The pulmonary circulation involves the flow of blood between the heart and the lungs. In this circulation, deoxygenated blood from the body is pumped to the lungs to pick up oxygen and release carbon dioxide. The oxygenated blood is then returned to the heart to be pumped to the rest of the body. The other choices (B: interlobular, C: respiratory, D: bronchial) are incorrect because they do not specifically refer to the circulation responsible for oxygenating blood and removing carbon dioxide in the lungs. Instead, they relate to other structures or functions within the respiratory system.
Inflammation of the lung covering causing severe chest pain is
- A. Emphysema
- B. Pleurisy
- C. Asphyxia
- D. Hypoxia
Correct Answer: B
Rationale: The correct answer is B: Pleurisy. Pleurisy is the inflammation of the lung covering (pleura), leading to severe chest pain. Emphysema (A) is a chronic lung disease characterized by damaged air sacs. Asphyxia (C) is a condition of inadequate oxygen supply. Hypoxia (D) is a state of low oxygen levels in tissues. Pleurisy is the best fit as it directly relates to inflammation of the lung covering and severe chest pain.
Which of the following is NOT found in lung tissue?
- A. blood capillaries
- B. alveolar sacs
- C. interstitial fluid
- D. muscle
Correct Answer: D
Rationale: The correct answer is D: muscle. Lung tissue does not contain muscle tissue; instead, it is primarily composed of alveolar sacs for gas exchange, blood capillaries for oxygen exchange, and interstitial fluid for support. Muscles are not part of the structure of the lungs as they are not involved in the respiratory process. In summary, muscles are not found in lung tissue, making option D the correct choice.
which of the following is a chronic respiratory disorder caused by smoking?
- A. asthma
- B. emphysema
- C. respiratory alkalosis
- D. Acidosis
Correct Answer: B
Rationale: Emphysema is the correct answer because it is a chronic respiratory disorder specifically caused by smoking. Smoking damages the air sacs in the lungs, leading to shortness of breath and difficulty breathing. Asthma is a separate condition involving airway inflammation. Respiratory alkalosis and acidosis refer to imbalances in blood pH levels, not directly caused by smoking.