What type of cells secrete glucagon?
Plasma cells
Acinar cells
Beta cells
Alpha cells
The Correct Answer is D
D. Alpha cells, also known as A cells, are a type of pancreatic islet cell (or islet of Langerhans cell) that secretes glucagon. Glucagon plays a crucial role in increasing blood sugar levels by promoting the breakdown of glycogen in the liver and stimulating the release of glucose into the bloodstream.
A. Plasma cells are a type of white blood cell that produces antibodies as part of the immune response. They are not involved in the production of glucagon.
B. Acinar cells are exocrine cells found in the pancreas that secrete digestive enzymes into the pancreatic ducts. These enzymes aid in the digestion of food in the small intestine. Acinar cells are not involved in the production of glucagon.
C. Beta cells are another type of cell in the pancreas, but they secrete insulin, not glucagon. Insulin is responsible for lowering blood sugar levels by promoting the uptake of glucose into cells for energy or storage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. Pursed lip breathing is a technique that can help patients with acute dyspnea by improving ventilation, prolonging exhalation, and reducing the work of breathing. It helps to keep the airways open longer and makes it easier to get rid of excess carbon dioxide, which can provide quick relief from acute shortness of breath.
A. Teaching the patient about using accessory muscles for breathing can be beneficial in managing chronic respiratory issues, but it is not an immediate intervention.
B. Understanding the cause of dyspnea is important for treatment planning but it is not the first action to take when the patient is experiencing acute shortness of breath.
D. The Sims position, where the patient lies on their side with the lower arm behind the back and the upper leg flexed, is not typically used for relieving acute respiratory distress.
Correct Answer is A, B, C, D, E
Explanation
A. Shake the canister 3 to 5 seconds vigorously.
Before each use, it's important to shake the MDI to ensure proper mixing of the medication.
B. Place her lips firmly around the mouthpiece.
Creating a tight seal around the mouthpiece ensures that the medication is delivered directly into the airways.
C. Inhale slowly over 3 to 5 seconds while pushing down on the canister.
While pressing down on the canister, the client should inhale slowly to allow the medication to reach the lungs.
D. Hold her breath for 10 seconds.
After inhaling the medication, holding the breath for 10 seconds allows for better absorption of the medication into the lungs.
E. Exhale slowly through pursed lips.
After holding the breath, exhaling slowly through pursed lips helps to fully exhale and ensures that the medication remains in the airways.
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