Phenol red is used as the indicator for the Urea Medium because the indicator detects the formation of ammonia caused by the hydrolysis of urea done by the bacteria. Bromothymol blue is used in Simmons Citrate Agar because it effectively indicates the formation of carbonates formed by the consumption of citrate.
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The organ which plays the primary role in prompting individuals to seek food is the brain. The brain is one of the most important organ of the nervous system. It is comparable to the CPU of a computer. It is repsonsible of processing information that it is receiving from all the senses and send the message back to the organs for a response.
Answer:
d. Measure thyroid-stimulating hormone level
Explanation:
The most suitable next step in management of this patient is to measure a thyroid stimulating hormone, or thyrotropin level.
This patient's apparent treatment refractory dyslipidemia is most likely contributed by undiagnosed thyroid disease. Despite sticking to the treatment with atorvastatin, his LDL AND total cholesterol are raised.
Additionally, there are some clinical signals that give an idea about the diagnosis of hypothyroidism especially fatigue and constipation.
Hypothyroidism is concerned with and is a very common secondary cause of dyslipidemia and thyrotropin level measures are indicated.
Hyperlipidemia may show better results to thyroid stimulating hormone.
Hence option D is the right answer.
