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."

Answer and Explanation

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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Free Nursing Study Resources

Correct Answer is ["10"]

Explanation

To administer the correct dose of valproic acid, which is 500 mg, when the available oral solution concentration is 250 mg per 5 mL, the nurse needs to calculate the volume of the solution required.

The calculation is as follows: (500 mg) / (250 mg/5 mL) = 2 x 5 mL = 10 mL.

Therefore, the nurse should administer 10 mL of the valproic acid oral solution to deliver a dose of 500 mg.

A. Stool softener B. Saline/osmotic laxative C. Stimulant laxative D. Bulk-forming laxative

Correct Answer is C

Explanation

A) Stool softener:
Stool softeners, such as docusate sodium, work by adding moisture to the stool, making it softer and easier to pass. They do not directly stimulate bowel movements or peristalsis through irritation of the bowel lining.

B) Saline/osmotic laxative:
Saline or osmotic laxatives, such as magnesium hydroxide (milk of magnesia) and polyethylene glycol (PEG), work by drawing water into the intestines, which softens the stool and increases bowel motility. They do not primarily act by irritating the bowel lining.

C) Stimulant laxative.
Stimulant laxatives work by directly stimulating the nerves in the intestines, which increases the rhythmic contractions of the intestines (peristalsis) and promotes bowel movements. These medications irritate the bowel lining, leading to increased motility and expulsion of stool. Examples of stimulant laxatives include bisacodyl and senna.

D) Bulk-forming laxative:
Bulk-forming laxatives, such as psyllium and methylcellulose, work by increasing the bulk and water content of the stool, which stimulates bowel movements. They do not directly irritate the bowel lining to promote peristalsis. Instead, they absorb water and swell in the intestines, creating a larger, softer stool that is easier to pass.

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A client asks the nurse what ventilation is. What is the most appropriate response by the nurse?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer valproic acid 500 mg PO. Available is valproic acid oral solution 250 mg/5 mL. How many mL should they administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["10"]

Explanation

Which type of laxative causes peristalsis by irritating the bowel?

Correct Answer is C

Explanation

A nurse is assisting with the care of four clients who have peptic ulcer disease. The nurse should identify that misoprostol (Cytotec) is contraindicated for which of the following clients?

After taking the medication guaifenesin (Mucinex), the client complains of coughing up phlegm. What is the best response by the nurse?

A nurse is preparing to administer diphenhydramine to a client who is to receive a blood transfusion. The nurse should explain that the purpose of diphenhydramine is to prevent which of the following manifestations of a transfusion reaction?

What is the correct term for blood flow through the lung?

Patients should be advised not to overuse laxatives, because the smooth muscle in the colon can lose its tone. What condition should the nurse warn, the client can occur if this happens?

An ulcer caused by H. pylori can be successfully treated with which classification of drugs?

In reviewing a plan of care for a patient exhibiting the symptoms of anaphylaxis, which of the following medications would be avoided?