How is most oxygen transported in the blood?
Dissolved in plasma
By hemoglobin
By bicarbonate
By pulmonary surfactants
The Correct Answer is B
A. Dissolved in plasma- only ~1.5% of oxygen is dissolved in plasma.
B. By hemoglobin- ~98.5% of oxygen binds to hemoglobin in red blood cells.
C. By bicarbonate- this primarily transports carbon dioxide, not oxygen.
D. By pulmonary surfactants- surfactant reduces surface tension in alveoli, not related to oxygen transport in blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Superior/upper right lobe: Label #1 is at the top part of the right lung.
B. Inferior/lower right lobe: The left lung is on the viewer’s right. The lower lobe of the left lung is positioned inferiorly (near the diaphragm) and would be closer to label #8.
C. Superior/upper left lobe: The left lung has only two lobes: superior and inferior. The superior lobe of the left lung would be in the corresponding location to label #6.
D. Middle right lobe: The middle lobe is only present in the right lung and lies below the superior lobe but above the inferior lobe.
Correct Answer is A
Explanation
A. Diaphragm: The diaphragm is a dome-shaped muscle that contracts and flattens during inhalation, creating negative pressure to draw air into the lungs.
B. Pectoris minor: The pectoralis minor assists with deep or labored breathing but is not the primary muscle of inhalation.
C. Pectoris major: This chest muscle plays a role in arm movement and may assist minimally in labored breathing.
D. Intercostals: The intercostal muscles assist with breathing but are secondary to the diaphragm.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.