Chronic vomiting can lead to which of the following?
Metabolic acidosis
Metabolic alkalosis
Respiratory alkalosis
Respiratory acidosis
Lymphatic alkalosis
The Correct Answer is B
A. Metabolic acidosis: This occurs due to loss of bicarbonate (e.g., from diarrhea), not vomiting.
B. Metabolic alkalosis: Vomiting results in loss of hydrochloric acid from the stomach, leading to a relative increase in bicarbonate and metabolic alkalosis.
C. Respiratory alkalosis: Caused by hyperventilation, not vomiting.
D. Respiratory acidosis: Results from hypoventilation or lung disease, not gastrointestinal losses.
E. Lymphatic alkalosis: Not a recognized medical condition.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. It participates in muscle contraction: Calcium binds to troponin, enabling contraction.
B. It is a significant component of nucleic acids: Calcium is not a structural part of DNA or RNA; phosphate is.
C. They serve as second messengers: Calcium ions act as second messengers in various signaling pathways.
D. It activates exocytosis: Calcium triggers neurotransmitter and hormone release by promoting vesicle fusion.
E. It is important in blood clotting: Calcium is essential for several steps in the coagulation cascade.
Correct Answer is B
Explanation
A. Nasal vestibule: The nasal vestibule is the anterior part of the nasal cavity just inside the nostrils, lined with skin and hair.
B. Nasal cavity: The nasal cavity is a large air-filled space behind the nose, extending from the nostrils to the choanae.
C. Nasal concha: The nasal conchae are curved bony projections (superior, middle, and inferior) inside the nasal cavity that increase the surface area for warming and humidifying air.
D. Sphenoid sinus: The sphenoid sinus is a hollow space within the sphenoid bone, located posterior to the nasal cavity and inferior to the sella turcica.
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