Definition Blood or urine tests can determine the levels of various hormones in the body. This includes reproductive hormones, thyroid hormones, adrenal hormones, pituitary hormones, and many others. For more information, see: 5-HIAA 17-OH progesterone 17-hydroxycorticosteroids 17-ketosteroids 24-hours urinary aldosterone excretion rate 25-OH Vitamin D Adrenocorticotropic hormone (ACTH) ACTH stimulation test ACTH suppression test ADH Aldosterone Calcitonin Catecholamines - blood Catecholamines - urine Cortisol level Cortisol - urine DHEA-sulfate Folicle stimulating hormone (FSH) Growth hormone HCG (qualitative - blood) HCG (qualitative - urine) HCG (quantitative) Lutenizing hormone (LH) LH response to GnRH Parathormone Renin Pregnanediol Progesterone - serum Prolactin PTH-related peptide RT3U Secretin stimulation test Serotonin T3 T4 Testosterone Thyroid stimulating hormone (TSH) How the test is performed How to prepare for the test How the test will feel Why the test is performed
Dear Dr. Motola,
If a person has a low PSA can you attribute this to any particular factor or factors? In other words are there any medical reasons for a low PSA? A friend told me that there has to be mitigating factors for this low score.
A low PSA is usually desirable as it will be associated with a lower likelihood of prostate cancer . Prostate cancer is not always associated with an elevated PSA as tumors that are very high grade may be associated with normal PSA . This occurs because high-grade tumors are very dissimilar to normal prostate, and as a result lose their ability to secrete PSA. Most often these patients will have very abnormal digital rectal examination. Patients taking Proscar or Avodart may often have low PSA values. This group of patients needs to have careful scrutiny of the interpretation of their PSA.
I’ve written previously about adolescent male depression and the difficulties that can be encountered trying to unravel normal adolescent behavior from signs that something is really wrong. Mood shifts, irritability, lack of motivation, sullenness and anger seem to affect many teens. Parents may become increasingly confused and concerned over what is happening and why? They feel hurt as the child they once knew seems to reject their help and increasingly points out their perceived inadequacies as a parent and adult through words, deeds or both. How do we, as parents, understand what’s behind the apathy of adolescence?
Negative mindsets are a characteristic of depression, but they are also a feature of adolescence. Here’s a young person who feels the need to let go of the child and become someone else – but who? It’s often a sudden and dramatic change. After years of play, embracing make-believe, cherishing toys and teddy bears, it stops: but what i...
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