If the mono test is initially negative but the healthcare practitioner still suspects mono, a repeat test done a week or so later may be used to determine whether heterophile antibodies have developed. If the mono test is persistently negative, a test specific for EBV antibodies may be used to help confirm or rule out the presence of an EBV infection. A strep test may also be ordered along with a mono test to determine whether a person's sore throat is due to strep throat (group A streptococcal infection) instead of or in addition to mononucleosis.
Endogenous DMT in the blood, even in small amounts can have a subtle debilitating effect on one’s normal state of consciousness and mental equilibrium, for this reason MAO continually scours the blood and destroys any trace amounts of endogenous DMT. When activated, the pineal gland produces a surge of METAtonin that is quickly absorbed by the central brain before MAO can destroy it; this surge is quick and intense enough for self-consciousness to make the quantum leap from an integrated state of combined self/body consciousness to distinctly separated states of free-floating self-consciousness and auto pilot body maintenance consciousness. This quantum leap can sometimes induce a great deal of psychological turmoil, particularly if the subject is not prepared for the experience and naturally tries to resist it - which happens quite often.
In autoimmune gastritis , the immune system attacks the parietal cells leading to hypochlorhydria (low stomach acid secretion). This results in an elevated gastrin level in an attempt to compensate for increased pH in the stomach. Eventually, all the parietal cells are lost and achlorhydria results leading to a loss of negative feedback on gastrin secretion. Plasma gastrin concentration is elevated in virtually all individuals with mucolipidosis type IV (mean 1507 pg/mL; range 400-4100 pg/mL) (normal 0-200 pg/mL) secondary to a constitutive achlorhydria. This finding facilitates the diagnosis of patients with this neurogenetic disorder.  Additionally, elevated gastrin levels may be present in chronic gastritis resulting from H pylori infection.