Nokea
The abnormal assessment findings of dullness and hyperresonance are found with which assessment technique?
- A. Inspection
- B. Palpation
- C. Percussion
- D. Auscultation
Correct Answer: C
Rationale: The correct answer is C because dullness and hyperresonance are abnormal assessment findings that are identified through percussion techniques.
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Pulmonary ventilation also called
- A. inhalation
- B. exhalation
- C. Breathing
- D. all of these
Correct Answer: C
Rationale: The correct answer is C: Breathing. Pulmonary ventilation refers to the process of breathing, which involves both inhalation and exhalation. Inhalation is the act of taking in air, while exhalation is the act of expelling air. Therefore, the term "pulmonary ventilation" encompasses both inhalation and exhalation, making choice C the correct answer. Choices A and B are incorrect because they only represent one part of the breathing process. Choice D is incorrect because it suggests that all choices are correct, which is not accurate in this context.
Wall of Larynx is supported by the cartilage
- A. Cricoid
- B. Thyroid
- C. Artynoid
- D. All these
Correct Answer: D
Rationale: The correct answer is D, All these. The wall of the larynx is supported by a combination of cartilages, including the cricoid, thyroid, and arytenoid cartilages. The cricoid cartilage forms the base of the larynx, the thyroid cartilage forms the front and sides, and the arytenoid cartilages sit on top of the cricoid and are involved in vocal cord movement. Each of these cartilages plays a crucial role in supporting and maintaining the structure and function of the larynx. Therefore, all of these cartilages collectively support the wall of the larynx. Choices A, B, and C are incorrect because each of these cartilages individually contributes to the support of the larynx, but it is the combination of all three that fully supports the wall of the larynx.
Which of the following are risk factors of laryngeal cancer?
- A. Acute laryngitis
- B. Tobacco use
- C. Caffeine use
- D. Sleep apnea
Correct Answer: B
Rationale: The correct answer is B. Tobacco use is a well-established risk factor for laryngeal cancer. A (acute laryngitis) is a temporary condition and not a risk factor. C (caffeine use) has no proven link to laryngeal cancer. D (sleep apnea) is unrelated.
The term "blue bloater" refers to which of the following conditions?
- A. Acute respiratory distress syndrome (ARDS)
- B. Asthma
- C. Chronic obstructive bronchitis
- D. Emphysema
Correct Answer: C
Rationale: The correct answer is C: Chronic obstructive bronchitis. The term "blue bloater" is a classic descriptor used in the context of chronic obstructive bronchitis. It refers to patients who exhibit cyanosis (blue discoloration of the skin due to lack of oxygen) and are often overweight and edematous. This term is used to differentiate from "pink puffers" who have emphysema. Both conditions are part of chronic obstructive pulmonary disease (COPD), but the "blue bloater" presentation is more characteristic of chronic bronchitis due to the chronic hypoxia and retained carbon dioxide.
Now, let's evaluate why the other choices are incorrect:
A: Acute respiratory distress syndrome (ARDS) typically presents with severe difficulty breathing and rapid onset of respiratory failure. It is not referred to as a "blue bloater."
B: Asthma is characterized by reversible airway obstruction and wheezing, usually triggered by allergens or irrit
Bohr effect shifts the O2 Hb dissociation curve to right
- A. To promote oxygenation of Hb in lungs
- B. To increase O2 concentration
- C. To decrease CO2 concentration
- D. To decrease the pH of blood
Correct Answer: D
Rationale: The Bohr effect states that a decrease in pH shifts the oxygen-hemoglobin dissociation curve to the right, promoting the release of oxygen to tissues. This occurs in metabolically active tissues where CO2 is produced, lowering the pH. Choice D is correct because a decrease in blood pH facilitates oxygen unloading. Choices A and B are incorrect because the Bohr effect is related to oxygen release, not uptake. Choice C is incorrect because decreasing CO2 concentration would actually shift the curve to the left.