What would happen if your patient did not have alpha cells of the pancreas?
They would not be able to secrete insulin.
They would not be able to secrete glucagon.
They would not be able to secrete somatostatin and gastrin.
They would not be able to secrete pancreatic polypeptides.
The Correct Answer is B
A. Insulin is secreted by beta cells of the pancreas, not alpha cells. Therefore, a lack of alpha cells would not affect insulin secretion.
B. Alpha cells of the pancreas are responsible for secreting glucagon, which helps raise blood glucose levels by promoting the release of glucose from the liver. Without alpha cells, glucagon secretion would be impaired.
C. Somatostatin and gastrin are secreted by delta cells and G cells, respectively, not alpha cells. Therefore, a lack of alpha cells would not prevent the secretion of these hormones.
D. Pancreatic polypeptides are secreted by F cells in the pancreas, not alpha cells. Therefore, a lack of alpha cells would not affect the secretion of pancreatic polypeptides.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Arterial blood gas (ABG) analysis is the most accurate method for distinguishing between hypoxemia (low oxygen levels in the blood) and hypercapnia (elevated carbon dioxide levels). ABG testing measures both the partial pressure of oxygen (PaO2) and carbon dioxide (PaCO2), providing a clear distinction between the two conditions.
B. While observing for signs and symptoms is useful, it is not specific enough to distinguish between hypoxemia and hypercapnia, as both conditions may present with similar symptoms like shortness of breath or confusion.
C. Measuring oxygen saturation with a pulse oximeter can detect hypoxemia but does not provide information about carbon dioxide levels, so it cannot distinguish between hypoxemia and hypercapnia.
D. Pulmonary function testing assesses lung volumes and airflow but does not directly measure oxygen or carbon dioxide levels, making it less effective for distinguishing between hypoxemia and hypercapnia.
Correct Answer is B
Explanation
A. Overactive bladder refers to the condition where there is a sudden and uncontrollable urge to urinate, often associated with urgency and frequency, but it is not caused by exertional stimuli.
B. Stress incontinence is the type of urinary incontinence that occurs when physical activity or exertion, such as coughing, sneezing, laughing, or lifting, increases abdominal pressure and leads to involuntary leakage of urine.
C. Functional incontinence refers to the inability to reach the bathroom in time due to physical or cognitive impairments, such as mobility issues or dementia, rather than exertional triggers.
D. Urge incontinence is the sudden and intense urge to urinate, often leading to involuntary loss of urine. It is not typically caused by exertion but by an overactive bladder.
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