Orthopnea means:
Rhythmic variation in breathing
A breathing difficulty that is relieved by sitting upright
Difficult or labored breathing
Cessation of breathing
The Correct Answer is B
A. Rhythmic variation in breathing refers to breathing patterns such as Cheyne-Stokes respiration, not orthopnea.
B. Orthopnea is defined as difficulty breathing when lying flat, which is relieved by sitting or standing upright. It is often seen in patients with heart failure or other conditions causing fluid buildup in the lungs.
C. Difficult or labored breathing is called dyspnea, not orthopnea. While orthopnea is a type of dyspnea, the key feature of orthopnea is its positional nature.
D. Cessation of breathing is known as apnea, not orthopnea.
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 A
Explanation
A. Hypoxemia specifically refers to low levels of oxygen in the arterial blood, which can lead to tissue hypoxia if not corrected. It is often detected through arterial blood gas (ABG) analysis or pulse oximetry.
B. Excess oxygen in the blood is rare and may occur with supplemental oxygen therapy, but it is not the definition of hypoxemia.
C. Excess oxygen in the tissues is not a standard clinical term and does not relate to the condition known as hypoxemia.
D. Excess carbon dioxide in the blood is called hypercapnia, not hypoxemia.
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