A client asks the nurse what ventilation is. What is the most appropriate response by the nurse?
"Ventilation is the process of moving air into and out of the lungs."
"Ventilation is taking a breath in."
"Ventilation is the blood flow through the lung."
"Ventilation is the process by which gases are exchanged."
The Correct Answer is A
A) "Ventilation is the process of moving air into and out of the lungs."
Ventilation refers to the mechanical process of breathing, which involves the movement of air into and out of the lungs. During ventilation, air containing oxygen is drawn into the lungs through inhalation (inspiration), and carbon dioxide-rich air is expelled from the lungs through exhalation (expiration). This process facilitates the exchange of gases (oxygen and carbon dioxide) between the lungs and the external environment.
B) "Ventilation is taking a breath in."
This statement is too simplistic and does not fully encompass the process of ventilation, which includes both inhalation and exhalation. Ventilation involves not only taking a breath in but also the subsequent process of exhaling.
C) "Ventilation is the blood flow through the lung."
This statement describes perfusion, which is the process of blood flow through the lung's blood vessels, rather than ventilation, which involves air movement in and out of the lungs. Ventilation and perfusion are closely related but distinct processes.
D) "Ventilation is the process by which gases are exchanged."
While ventilation facilitates gas exchange, this statement does not fully capture the mechanical aspect of moving air into and out of the lungs, which is the primary function of ventilation. Gas exchange occurs in the alveoli of the lungs, where oxygen diffuses into the bloodstream, and carbon dioxide diffuses out of the bloodstream, but ventilation refers specifically to the movement of air.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Low-back pain:
Low-back pain is not typically associated with transfusion reactions. While certain complications of blood transfusions, such as transfusion-related acute lung injury (TRALI) or hemolytic reactions, can cause back pain, diphenhydramine is not specifically administered to prevent this manifestation.
B) Fever:
Fever can be a manifestation of various transfusion reactions, including febrile non-hemolytic reactions or bacterial contamination of blood products. However, diphenhydramine is not typically administered to prevent fever associated with transfusion reactions. Instead, measures such as leukoreduction of blood products or premedication with acetaminophen may be used to reduce the risk of febrile reactions.
C) Dyspnea:
Dyspnea, or difficulty breathing, can occur in severe transfusion reactions such as transfusion-related acute lung injury (TRALI) or anaphylaxis. While diphenhydramine may be part of the treatment for anaphylaxis, it is not specifically administered to prevent dyspnea associated with transfusion reactions.
D) Urticaria.
Urticaria, commonly known as hives, is a common manifestation of an allergic transfusion reaction. Diphenhydramine is an antihistamine medication that can help prevent or alleviate allergic reactions, including urticaria, by blocking the action of histamine, a substance released during allergic reactions. Administering diphenhydramine before a blood transfusion is a preventive measure to reduce the risk of allergic transfusion reactions, including urticaria.
Correct Answer is ["A","E"]
Explanation
A. The medication will relieve wheezing: Albuterol is a short-acting beta agonist bronchodilator that works by quickly relaxing the smooth muscles of the airways, leading to rapid bronchodilation. This helps relieve symptoms such as wheezing, shortness of breath, and chest tightness commonly associated with asthma exacerbations.
B. The medication will reduce inflammation: Albuterol is not primarily indicated for reducing inflammation in asthma. While it can help alleviate symptoms of bronchospasm, it does not target the underlying inflammation associated with asthma.
C. The medication will increase the amount of mucus: Albuterol does not increase mucus production. In fact, it is a bronchodilator medication that primarily targets airway smooth muscle relaxation and bronchodilation to improve airflow and relieve symptoms.
D. The medication will decrease coughing episodes: Albuterol can help decrease coughing episodes by relieving bronchospasm and improving airflow. However, its primary mechanism of action is bronchodilation rather than directly targeting coughing.
E. The medication will open the airways: Albuterol works by stimulating beta-2 adrenergic receptors in the airway smooth muscles, resulting in relaxation of these muscles and dilation of the bronchial tubes. This action helps to open the airways, allowing for improved airflow and easier breathing.
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