What is the correct term for blood flow through the lung?
Inspiration
Expiration
Respiration
Perfusion
The Correct Answer is D
A) Inspiration:
Inspiration refers to the process of inhaling or breathing in air into the lungs. It involves the contraction of the diaphragm and expansion of the chest cavity, leading to the intake of air into the lungs.
B) Expiration:
Expiration, also known as exhalation, refers to the process of exhaling or breathing out air from the lungs. It involves the relaxation of the diaphragm and chest muscles, leading to the expulsion of air from the lungs.
C) Respiration:
Respiration is a broader term that encompasses both ventilation (the mechanical process of breathing) and gas exchange (the exchange of oxygen and carbon dioxide between the lungs and blood). While respiration involves both air movement and gas exchange, it does not specifically refer to blood flow through the lung, which is described by the term perfusion.
D) Perfusion.
Perfusion refers to the circulation of blood through the lung's blood vessels, including the pulmonary arteries and pulmonary capillaries. This process allows for the exchange of gases (oxygen and carbon dioxide) between the blood and the air in the lungs during respiration. Perfusion is essential for oxygenating blood and removing carbon dioxide, which is crucial for maintaining normal cellular function throughout the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Cardiogenic shock:
Cardiogenic shock occurs when the heart is unable to pump enough blood to meet the body's needs, often due to myocardial infarction (heart attack) or other conditions affecting the heart's function. The client's history of a recent infection does not align with the etiology of cardiogenic shock.
B) Neurogenic shock:
Neurogenic shock occurs due to dysfunction of the autonomic nervous system, typically as a result of spinal cord injury or severe brain injury. It is characterized by widespread vasodilation and bradycardia. The client's history of a recent infection does not align with the etiology of neurogenic shock.
C) Hypovolemic shock:
Hypovolemic shock occurs due to a significant loss of blood volume, such as from trauma, hemorrhage, or dehydration. While infection can lead to fluid loss and dehydration in some cases, the client's history of a recent infection suggests a different etiology, specifically septic shock, which is driven by the systemic inflammatory response to infection.
D) Septic shock.
Septic shock is a type of distributive shock caused by a systemic response to infection. It occurs when an infection triggers a widespread inflammatory response, leading to vasodilation, increased capillary permeability, fluid loss from the bloodstream, and impaired tissue perfusion. The client's history of a recent infection suggests that the shock may be septic in nature.
Correct Answer is C
Explanation
A) Nighttime pain:
Nighttime pain, also known as nocturnal pain, is a symptom associated with both duodenal and gastric ulcers. It occurs when the stomach or duodenal lining is empty and no food is present to buffer the effect of gastric acid. While nighttime pain can occur in both types of ulcers, it is not more specific to duodenal ulcers compared to gastric ulcers.
B) Anorexia:
Anorexia, or loss of appetite, can occur in both duodenal and gastric ulcers due to factors such as pain, discomfort, and inflammation. It is not a symptom that is more commonly associated with one type of ulcer over the other.
C) Postprandial pain (occurring after a meal).
Postprandial pain, which occurs after a meal, is more commonly associated with duodenal ulcers than gastric ulcers. This pain typically occurs 2 to 3 hours after eating, as it is often triggered by the release of gastric acid and duodenal contractions stimulated by food intake. Duodenal ulcers tend to cause this type of pain because they are located in the duodenum, the first part of the small intestine, which is exposed to gastric acid and bile after a meal.
D) Nausea and vomiting:
Nausea and vomiting can occur in both duodenal and gastric ulcers, particularly if the ulcer is accompanied by complications such as obstruction or perforation. These symptoms are not more specific to duodenal ulcers compared to gastric ulcers.
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