The iron-containing protein that carries oxygen in the blood is:
Hemoglobin
Antigen
Albumin
Bicarbonate ion
The Correct Answer is A
A. Hemoglobin is an iron-containing protein found in red blood cells. It binds to oxygen in the lungs and carries it through the bloodstream to tissues throughout the body.
B. Antigens are substances that can trigger an immune response, but they are not involved in carrying oxygen in the blood.
C. Albumin is a protein in the blood that helps maintain osmotic pressure and transports various substances, but it does not carry oxygen.
D. Bicarbonate ions are involved in carbon dioxide transport in the blood, not oxygen. They help regulate the pH of blood and facilitate CO₂ transport from tissues to the lungs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. The septum refers to the nasal septum, which divides the nasal cavity into two nostrils. It is not part of the pharynx.
B. The oropharynx is located below the nasopharynx and serves as a passage for both air and food. It is not the most superior portion of the pharynx.
C. The nasopharynx is the most superior portion of the pharynx, located behind the nasal cavity and above the soft palate. It is primarily involved in the passage of air from the nasal cavity to the rest of the respiratory system.
D. The laryngeal pharynx (or hypopharynx) is the portion of the pharynx below the oropharynx, just above the larynx, and it
Correct Answer is D
Explanation
A. Compliant is not the term used in COPD. It refers to something that is flexible or yielding, which does not describe the condition.
B. Cumulative could describe the long-term effects of COPD, but it is not the word represented by the "C" in COPD.
C. Congestive is a term often associated with conditions like congestive heart failure, not COPD.
D. Chronic is the correct term. Chronic Obstructive Pulmonary Disease (COPD) refers to a long-term, progressive lung disease that causes difficulty breathing due to airflow obstruction.
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