Nokea
Palpation is the assessment technique used to find which abnormal assessment findings?
- A. Stridor
- B. Finger clubbing
- C. Tracheal deviation
- D. Limited chest expansion
Correct Answer: D
Rationale: The correct answer is D because limited chest expansion is one of the abnormal assessment findings that can be identified through palpation techniques.
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A nurse cares for a client who had a bronchoscopy 2 hours ago. The client asks for a drink of water. What action would the nurse take next?
- A. Call the primary health care provider and request food and water for the client.
- B. Provide the client with ice chips instead of a drink of water.
- C. Assess the client's gag reflex before giving any food or water.
- D. Let the client have a small sip to see whether he or she can swallow.
Correct Answer: C
Rationale: The correct answer is C: Assess the client's gag reflex before giving any food or water. After a bronchoscopy, the client's gag reflex may be compromised, increasing the risk of aspiration. Assessing the gag reflex is crucial to ensure the client can safely swallow without the risk of choking or aspirating. This step is essential before providing any food or water to prevent potential complications.
Incorrect Choices:
A: Calling the primary health care provider for food and water is unnecessary as the nurse can make this decision based on assessment.
B: Providing ice chips instead of water does not address the need for assessing the gag reflex before giving any form of intake.
D: Letting the client have a small sip without assessing the gag reflex first can pose a risk of aspiration if the reflex is impaired.
Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to
- A. changes in PCO2
- B. changes in PCO2
- C. changes in pH
- D. changes in blood pressure
Correct Answer: B
Rationale: The correct answer is B: changes in PCO2. Chemoreceptors in the carotid and aortic bodies detect levels of oxygen, carbon dioxide, and pH in the blood. Blocking afferent action potentials from these chemoreceptors would specifically interfere with detecting changes in PCO2, as these receptors primarily respond to alterations in CO2 levels. This interference would disrupt the brain's ability to regulate breathing in response to changes in PCO2, leading to potential respiratory problems. Choices A and C are incorrect because chemoreceptors primarily respond to CO2 levels, not O2 or pH. Choice D is incorrect because changes in blood pressure are primarily detected by baroreceptors, not chemoreceptors in the carotid and aortic bodies.
The medical nurse who works on a pulmonology unit is aware that several respiratory conditions can affect lung tissue compliance. The presence of what condition would lead to an increase in lung compliance?
- A. Emphysema
- B. Pulmonary fibrosis
- C. Pleural effusion
- D. Acute respiratory distress syndrome (ARDS)
Correct Answer: A
Rationale: The correct answer is A: Emphysema. Emphysema leads to an increase in lung compliance due to the destruction of alveolar walls, resulting in decreased elastic recoil. This decreased recoil makes it easier for the lungs to expand and increases overall lung compliance.
Incorrect choices:
B: Pulmonary fibrosis - Pulmonary fibrosis causes lung tissue scarring and stiffening, resulting in decreased lung compliance.
C: Pleural effusion - Pleural effusion is an accumulation of fluid in the pleural space, which can restrict lung expansion and decrease lung compliance.
D: Acute respiratory distress syndrome (ARDS) - ARDS causes inflammation and fluid buildup in the lungs, leading to decreased lung compliance due to increased stiffness and reduced ability to expand.
When the oxygen supply to the tissues is inadequate, the condition is
- A. Hypoxia
- B. Asphyxia
- C. Pleurisy
- D. Anoxia
Correct Answer: A
Rationale: The correct answer is A: Hypoxia. Hypoxia refers to inadequate oxygen supply to the tissues, leading to tissue damage. Asphyxia is a condition of suffocation due to lack of oxygen supply. Pleurisy is inflammation of the lining of the lungs, not directly related to oxygen supply. Anoxia is a severe form of hypoxia where there is complete deprivation of oxygen to the tissues. In this context, hypoxia best describes the condition of inadequate oxygen supply to the tissues.
Regarding oxygen transport
- A. The predominant way oxygen is transported in the blood is as dissolved oxygen
- B. 1 gram of pure Hb can combine with 1.34 - 1.39 ml of oxygen
- C. An anaemic patient has a lowered arterial pO2 because the Hb is low
- D. CO2 is 200 times more soluble than oxygen
Correct Answer: B
Rationale: The correct answer is B: 1 gram of pure Hb can combine with 1.34 - 1.39 ml of oxygen. This is correct because each gram of hemoglobin can bind with approximately 1.34 - 1.39 ml of oxygen, facilitating efficient oxygen transport in the blood.
A is incorrect because while a small amount of oxygen is transported as dissolved oxygen, the majority is transported bound to hemoglobin.
C is incorrect because arterial pO2 reflects the oxygen content in the blood, not just the hemoglobin levels.
D is incorrect because CO2 is actually 20 times more soluble than oxygen, not 200 times.