Top
20
Doctor insights on: Norepinephrine Plasma

Share
1

1
What is plasma acth cortisol response?

What is plasma acth cortisol response?

Test adrenal fxn.: This test is to check on whether or not your adrenal glands are working right. The acth action is to increase production and release of corticosteroids. In the test, a small amount of synthetic acth is injected and the amount of cortisol the adrenals produce in response is measured. This is used to check for things like primary and secondary adrenal insufficiency, and addison's disease. ...Read more

Plasma (Definition)

It is the fluid portion of both the blood and lymph system in which the ...Read more


3

3
What is the difference between plasma renin activity (pra) vs plasma renin concentration (prc)?

What is the difference between plasma renin activity (pra) vs plasma renin concentration (prc)?

See below:: Not all proteins are functionally active, especially in the case of enzymes. Discordance between renin concentration (prc) and renin activity (pra) allows detection of adrenal tumors. See this site for more info. http://www.ncbi.nlm.nih.gov/pubmed/15080782. ...Read more

5

5
What is plasma osmolarity? Plasma osmolality?

What is plasma osmolarity? Plasma osmolality?

Conc. electrolytes.: These refer to the concentration of electrolytes in the body/plasma, or the electrolyte-water balance. These measure the same thing, only that osmolality is the number of osmoles per kilogram of solvent or osm/kg, while osmolarity is the number of osmoles per liter of solution or osm/ltr. Osmolality excludes the solute, while osmolarity includes it, so osmolality has a slightly higher reading. ...Read more

See 1 more doctor answer
6

6
Does Effexor (venlafaxine) raise shbg (sex hormone binding gobulin) levels?

Does Effexor (venlafaxine) raise shbg (sex hormone binding gobulin) levels?

Interesting question: I have not found any publications specifically studying this question. Antipsychotics and Prozac (fluoxetine) can affect prolactin, potentially changing sex hormone levels. This may or may not relate to shbg levels, though. I did find one small (20 patients) study online concerning low testosterone levels and antidepressant-induced sexual dysfunction: http://tinyurl.Com/mk84cfr further research needed. ...Read more

7

7
What substances interfere with the plasma metanephrine test? 

What substances interfere with the plasma metanephrine test? 

Metanephrine: You should discontinue Epinephrine and epinephrine-like drugs for at least 1 week before the test, stop using Acetaminophen 48 hours beforehand, and fast for 8-10 hours prior to collection. It is especially important not to have any caffeine containing food (soda, chocolate), coffee (including decaf), tobacco (smoking cigarettes or cigars), tea, or alcohol for at least 4 hours before specimen coll. ...Read more

See 1 more doctor answer
9

9
What is the acth plasma stimulation test?

What is the acth plasma stimulation test?

Inject syn. ACTH: Hi. It's a test for primary adrenal insufficiency (where the adrenal glands themselves have failed) where synthetic ACTH(1-24), the N-terminal 24 amino acid peptide of native ACTH, is injected IV, and the adrenal response in making cortisol is measured at 0, 30, and 60 minutes. Dead adrenals don't respond. The ACTH-stim test does not reliably test for pituitary disease. ...Read more

10

10
What is plasma acth?

Pituitary hormone: Hi. ACTH is a hormone from the pituitary gland that travels by the bloodstream to the adrenal glands and stimulates cortisol production (and to a lesser extent, aldosterone). The cortisol feeds back to the pituitary to regulate ACTH release (also effects on hypothalamic CRH, but we'll keep it simple). ACTH positive feedforward & cortisol negative feedback works beautifully. Diseases can affect it. ...Read more

12

12
Do norepinephrine reuptake inhibitors suppress growth of brain?

Do norepinephrine reuptake inhibitors suppress growth of brain?

No: At this time, there is no evidence to suggest this. As one may imagine, few if any studies have been performed in humans to look for this. ...Read more

13

13
Sine seratonin depletes other nerotransmitters like dopamine, norepinephrine, and epinephrine...By "deplete" does it mean a permanent thing?

Sine seratonin depletes other nerotransmitters like dopamine, norepinephrine, and epinephrine...By "deplete" does it mean a permanent thing?

Not correct: Serotonin does not deplete other neurotransmitters, but there is a balance especially between Dopamine and serotonin. This balance is dynamic and constantly re-establishing itself. Unless there is damage to neurons (which there can be when abusing certain drugs) neurotransmitter changes would not be permanent. ...Read more

14

14
Blood work showed supine norepinephrine 183pg/ml, epinephrine 11, dopac 1204, dopa 2339; standing norep 639, epi 121, dopac 1099, dopa 1992, normal?

Blood work showed supine norepinephrine 183pg/ml, epinephrine 11, dopac 1204, dopa 2339;  standing norep 639, epi 121, dopac 1099, dopa 1992, normal?

Catecholamine levels: Not sure why you have done these levels, please provide the context, if elevated they suggest an hyper catecholamine state, adrenal tumor etc. ...Read more

15

15
Can taking bovine colostrum increase plasma immunoglobulin levels, thereby masking an underlying immunoglobulin deficiency by altering blood tests?

Can taking bovine colostrum increase plasma immunoglobulin levels, thereby masking an underlying immunoglobulin deficiency by altering blood tests?

Unlikely: Very thoughtful idea. Unfortunately, the bovine immunoglobins are too large to be absorbed from the intestine and would be digested by stomach and intestinal juices and enzymes. With use you would be providing body with raw materials for making your own immunoglobulins, but at a cost. Any "complete" proteins from eggs or milk could provide the same protein precursors and support good health. ...Read more

See 1 more doctor answer
17

17
Could hydrocodone affect plasma donation?

Could hydrocodone affect plasma donation?

No: You need to disclose your medications at the time of donation. ...Read more

18

18
Can cymbalta (duloxetine) effect blood sugar levels?

Can cymbalta (duloxetine) effect blood sugar levels?

Cymbalta (duloxetine): No reported cases of changes in blood sugar levels that I am aware of. ...Read more

19

19
Does testosterone raise circulating aldosterone in the body?

Does testosterone raise circulating aldosterone in the body?

Testosterone aldo: When testosterone is given as a supplement in men with "low T", fluid retention is often noted as a side effect. The cause of this fluid retention is complex, and not just related to aldosterone levels. In a normal male with normal testosterone, this is not really a factor. ...Read more

20

20
What does "selective" mean in selective serotonin reuptake inhibitor?

What does "selective" mean in selective serotonin reuptake inhibitor?

Just one type: "selective" in this case refers to the fact that the previous generation of antidepressants, the tricyclics, worked on all 3 of the neurotransmitters in the brain thought to be involved in depression in varying degrees; serotonin, norepinephrine, and dopamine. Prozac, (fluoxetine) and the other ssris act almost entirely on serotonin. ...Read more

Dr. Ravi Chand
756 doctors shared insights

Norepinephrine (Definition)

Norepinephrine is an inotrope which is a kind of heart ...Read more


Dr. Ravi Chand
76 doctors shared insights

Levophed (Definition)

Levophed is an inotrope which is a kind of heart ...Read more