Antibiotics are natural products of microorganisms is the true statement about antibiotics.
An antibiotic is a particular class of antimicrobial agent that works against bacteria. The use of antibiotic drugs is common in the treatment and prevention of bacterial infections since they are the most effective type of antibacterial agent. Bacterial growth may be prevented or killed by them. Antiprotozoal action is only present in a small number of antibiotics. Since viruses like the flu and the common cold cannot be treated with antibiotics, antiviral medications or antivirals are used in their place. Antibiotics are not effective against viruses like the flu or the common cold. They are also ineffective against fungi; antifungal medications are those that stop fungi from growing.
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hormonal variation throughout the menstrual cycle typically shows:
Hormonal variation throughout the menstrual cycle is controlled by complex interactions between the hypothalamus, pituitary gland, and ovaries.
During the menstrual cycle Hormonal variation, levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), estrogen, and progesterone change in a specific pattern, leading to ovulation and preparing the uterus for pregnancy. If pregnancy does not occur, the levels of these hormones drop, leading to the start of a new menstrual cycle. Understanding these Hormonal variation is important for fertility management and understanding the causes of menstrual cycle irregularities.
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The use of high-frequency sound waves to visualize the kidneys is:
a. retrograde pyelography
b. intravenous pyelography
c. ultrasonography
d. cystoscopy
The use of high-frequency sound waves to visualize the kidneys is c. ultrasonography.
Ultrasonography is a non-invasive imaging technique that uses high-frequency sound waves to create images of internal organs and tissues, including the kidneys. This technique is safe, quick, and does not involve exposure to radiation, making it a valuable tool for the diagnosis and monitoring of various kidney conditions. During the procedure, the patient is lying down and a gel is applied to the skin over the area being examined. A handheld device called a transducer is then placed over the gel, which emits sound waves that are reflected back by the organs and tissues, creating an image. Ultrasonography can be used to evaluate the size, shape, and function of the kidneys, and detect abnormalities such as cysts, tumors, or blockages.
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