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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) H2-receptor blockers:
H2-receptor blockers, such as ranitidine and famotidine, are used to reduce the production of stomach acid. While they can provide symptomatic relief for ulcers by reducing acid secretion, they do not directly treat the underlying cause of the ulcer, which is the H. pylori infection.
B) Antacids:
Antacids are medications that neutralize stomach acid and can provide temporary relief from ulcer symptoms such as pain and discomfort. However, they do not eradicate the H. pylori bacteria or address the root cause of the ulcer. Antacids only provide symptomatic relief rather than treating the infection.
C) Proton-pump inhibitors:
Proton-pump inhibitors (PPIs), such as omeprazole and pantoprazole, are potent acid-suppressing medications that are commonly used to treat ulcers and gastroesophageal reflux disease (GERD). While they can help in ulcer healing by reducing acid secretion and providing symptomatic relief, they are not effective in eradicating H. pylori infection. PPIs are often used in combination with antibiotics for H. pylori eradication therapy, but they are not the primary treatment on their own.
D) Antibiotics.
H. pylori (Helicobacter pylori) is a bacteria that commonly infects the stomach lining and is a major cause of gastric and duodenal ulcers. Antibiotics are the primary treatment for H. pylori infection. The antibiotics kill the bacteria, allowing the ulcer to heal. Common antibiotics used to treat H. pylori include amoxicillin, clarithromycin, metronidazole, and tetracycline.
Correct Answer is D
Explanation
A) "The amount of blood pumped by the heart through the circulatory system in 1 minute."
This statement describes cardiac output, which is the volume of blood pumped by the heart per minute, and is not directly related to digestion.
B) "Smooth muscle movement of the GI tract by way of contractions."
This statement describes peristalsis, which is the rhythmic contraction of smooth muscles in the gastrointestinal tract that propels food and waste materials through the digestive system. While peristalsis is an important aspect of digestion, it does not encompass the entire process.
C) "Neutralization by use of bicarbonate from pancreatic and biliary secretions."
This statement refers to the neutralization of acidic chyme from the stomach by bicarbonate ions released from pancreatic and biliary secretions in the duodenum. While this process is a part of digestion, it specifically addresses the regulation of pH rather than the breakdown of food molecules into absorbable forms.
D) "It is the process when food is broken down into molecules that can be absorbed."
This statement accurately describes digestion, which is the process by which complex food molecules are broken down into simpler forms (such as carbohydrates into sugars, proteins into amino acids, and fats into fatty acids and glycerol) that can be absorbed and utilized by the body. Digestion occurs in various stages along the gastrointestinal (GI) tract and involves the action of enzymes, acids, and mechanical processes to facilitate the breakdown of food into absorbable nutrients.
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