Interpretation of Opiate Urine Drug Screens. Summary. Urine drug testing is highly reliable, but false positives can rarely occur for some drugs. As always, clinical judgment is necessary when interpreting test results. The length of time a drug can be detected in the urine varies due to several factors,
Mood changes during pregnancy can be caused by physical stresses, fatigue, changes in your metabolism, or by the hormones estrogen and progesterone.Significant changes in your hormone levels can affect your level of neurotransmitters, which are brain chemicals that regulate mood.ood swings are mostly experienced during the first trimester between 6 to 10 weeks and then again in the third trimester as your body prepares for birth.
Signs of an ectopic pregnancy include cramping and abdominal pain (particularly on one side), spotting, or bleeding. 5. Other causes of cramping during early pregnancy - constipation or gas pains. Pregnant women often have problems with constipation. This can lead to uncomfortable cramping as well. Causes of Cramping During Late Pregnancy. 1.