A nurse in a clinic is reviewing the laboratory values of a patient who has primary hypothyroidism. The nurse should anticipate an elevation in which of the following laboratory values?
Free T4.
Serum T3.
Thyroid stimulating hormone (TSH).
Serum calcium.
The Correct Answer is C
Choice A rationale
Free T4 levels are typically low in primary hypothyroidism, not elevated.
Choice B rationale
Serum T3 levels are also typically low in primary hypothyroidism.
Choice C rationale
In primary hypothyroidism, the thyroid gland is not producing enough thyroid hormone, leading to an elevated TSH level as the pituitary gland tries to stimulate more hormone production.
Choice D rationale
Serum calcium levels are not directly affected by primary hypothyroidism.
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Related Questions
Correct Answer is C
Explanation
Choice C rationale
In the context of suspected acute pancreatitis, an increase in serum amylase is one of the key laboratory findings. Pancreatitis is associated with inflammation of the pancreas, which can result in the release of digestive enzymes such as amylase and lipase into the bloodstream.
Therefore, elevated levels of these enzymes are often used as markers for acute pancreatitis.
Choice A rationale
Decreased serum lipase is not typically associated with acute pancreatitis. In fact, an increase in serum lipase is more commonly seen in acute pancreatitis. Lipase is a digestive enzyme produced by the pancreas, and its levels in the blood can rise when the pancreas is inflamed.
Choice B rationale
Increased serum calcium is not typically associated with acute pancreatitis. While hypercalcemia, or high calcium levels, can be a cause of pancreatitis, it is not a typical finding in the blood tests of patients with acute pancreatitis.
Choice D rationale
Decreased white blood cell (WBC) count is not typically associated with acute pancreatitis. In fact, an increase in WBC count can sometimes be seen in acute pancreatitis due to the body’s inflammatory response to the condition. Hypothyroidism Explore
Correct Answer is B
Explanation
The maximum duration for the total infusion time of packed red blood cells should be 4 hours. This is to ensure the safety and efficacy of the transfusion. Transfusing the blood too quickly can lead to complications, while taking too long can result in the blood becoming unusable.
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