Which of the following stimulates the pancreas to secrete insulin?

Ketoacids

Hyperglycemia

Hypoglycemia

Glucagon

Answer and Explanation

The Correct Answer is B

A. Ketoacids: This is incorrect. While ketoacids are a by-product of fat metabolism that occurs when insulin is low, they do not directly stimulate insulin secretion.
B. Hyperglycaemia: This is correct. Elevated blood glucose levels (hyperglycaemia) directly stimulate the pancreas to secrete insulin to help lower blood glucose levels.
C. Hypoglycaemia: This is incorrect. Low blood glucose levels (hypoglycaemia) would reduce insulin secretion and might increase glucagon secretion to raise blood glucose levels.
D. Glucagon: This is incorrect in the context of directly stimulating insulin secretion. Glucagon is a hormone secreted by the alpha cells of the pancreas when blood glucose levels are low. Its primary role is to increase blood glucose levels by stimulating glycogenolysis and gluconeogenesis in the liver.

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Correct Answer is D

Explanation

A. Substance that can inhibit the growth of bacteria: This describes an antibiotic, not acquired resistance.
B. Ability of an organism to cause disease in humans: This describes pathogenicity, not acquired resistance.
C. The severity of a disease that an organism is able to cause: This describes virulence, not acquired resistance.
D. When a microbe is no longer affected by a drug following treatment with an anti-infective: This is the correct definition of acquired resistance. Over time, microbes can develop mechanisms to evade the effects of antibiotics, rendering them ineffective.

A. it may interfere with cartilage development B. Children become dehydrated easily C. photosensitivity may occur D. children's teeth may become discolored

Correct Answer is D

Explanation

A. It may interfere with cartilage development: Tetracyclines can deposit in developing bones and teeth, potentially causing discoloration and affecting bone growth in children.
B. Children become dehydrated easily: While dehydration is a concern in any illness, it's not the specific reason to avoid tetracyclines in children.
C. Photosensitivity may occur: Photosensitivity can be a side effect of some medications, but it's not the main reason to avoid tetracyclines in children.
D. Children's teeth may become discoloured: Tetracycline can stain developing teeth, causing permanent discoloration. This is the major reason to avoid them in young children.

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Which of the following stimulates the pancreas to secrete insulin?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Acquired resistance is:

Correct Answer is D

Explanation

Children younger than 9 years should not be given tetracyclines because:

Correct Answer is D

Explanation

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