Individual tests

FSH works closely with another hormone called LH to control sexual functions. In women, these tests help find the cause of infertility, assess ovarian function, find the reason for irregular or stopped menstrual periods, and confirm the start of menopause or perimenopause. In men, these tests can find the cause of infertility, the reason for a low sperm count, or a problem with the testicles. In children, these tests can help diagnose early or delayed puberty.
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is a genetic disorder affecting red blood cells, which carry oxygen from the lungs to tissues throughout the body. The disease can cause hemolysis, where red blood cells are destroyed faster than the body can replace them.
IGF-1 is a hormone that manages the human growth hormone's (GH) effects. Together, IGF-1 and GH promote the normal growth of bones and tissues. GH levels in the blood fluctuate depending on your diet and activity levels, but IGF-1 levels remain stable. So, an IGF-1 test is useful for determining if your body is making a normal amount of GH. The test helps diagnose growth disorders.
PTH is a hormone your parathyroid glands make, which helps control the calcium level in your blood. If calcium blood levels are too low, your parathyroid glands will release PTH to raise calcium levels. If calcium levels are too high, these glands will stop making PTH. This test helps diagnose hyperparathyroidism (too much PTH) and hypoparathyroidism (too little PTH), monitor kidney disease, and determine whether high calcium blood levels relate to parathyroid glands.
Luteinizing hormone (LH) is synthesized and secreted by gonadotropes in the anterior lobe of the pituitary gland. Along with the follicle-stimulating hormone (FSH), it is essential for proper reproductive function. In females, an acute rise of LH triggers ovulation; in males, it stimulates Leydig cell production of testosterone. This test typically finds the cause of infertility or irregular or stopped menstrual periods.
Progesterone is a hormone from the ovaries. During a normal menstrual cycle, progesterone prepares your uterus for pregnancy. This test is useful for those having trouble getting pregnant, undergoing fertility treatment, or experiencing abnormal bleeding when not pregnant.
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