Pregnancy by week - the signs and their clinical significance
In modern obstetrics development can be said that the presence of clinical signs specific to pregnancy, acquired complementary.Based on their displays there are several groups of symptoms that include certain clinical symptoms.For each stage of pregnancy characterized by certain symptoms.From this point of view by week pregnancy symptoms are diagnostic value in the evaluation of the normal course of pregnancy or the presence of complications.
Clinical features of the first trimester
In the earliest weeks of pregnancy a woman may be signs that belong to the group of questionable or suggestive signs of pregnancy.Their presence is characteristic until the end of the first trimester or the first twelve weeks.These signs are based on the subjective feelings of the pregnant:
- «satellite» the first few weeks of pregnancy are the changes in taste and appetite, nausea, which may be accompanied by vomiting, excessive weakness, drowsiness, fatigue when performing usual before loading.Change not only the taste, but also the sense of smell.The woman could hardly tolerate the smells, sometimes they provoke an attack of vomiting.In most cases during the first twelve weeks of the features tested, significantly improves the health of the pregnant.If these symptoms persist, and their presence affects the general condition of the woman, it is a sign of early toxicity.This situation requires the provision of skilled care
- appearance of feeling breast tenderness and breast enlargement in volume.Sometimes this is accompanied by excessive sensitivity and tenderness
- due to restructuring of the nervous system, a change in the mood of a woman - from whining to irritability Irritability - Try to control your mood .Mood swings may be accompanied by the development of syncope.For the first few weeks of pregnancy, it can be a normal physiological phenomenon that is related to pregnancy.As the progression of pregnancy to the end of the second month midwifery (the eight weeks of pregnancy) these complaints are gradually
- change physiological functions - becomes more frequent urination, constipation develop Constipation - Watch out for food .The cause of these complaints is the hormonal changes the body.Action "pregnancy hormone" progesterone Progesterone - norm and pathology leads to a marked slowdown of intestinal motility, reduction of its motor function, so the evacuation of food through the intestines is considerably slowed down and eventually it becomes a cause of constipation
As growth orprolong the pregnancy symptoms become more reliable, which greatly facilitates the diagnosis.It is enough to have only one reliable evidence to make the diagnosis of pregnancy.
As evidenced by credible signs
Signs that indicate the presence of a fetus in the uterus, are called reliable (or certainties).They appear in pregnant women in the second trimester.The term of 18-20 weeks, the first time a woman begins to feel fetal movements.Expectant mother may well determine when her baby is sleeping, and when it is active.For those women who have the next delivery will be repeated, perturbations may appear somewhat earlier.At first felt fetal movement is not entirely clear, but with each week of pregnancy, they are becoming more pronounced.During the physical examination of a pregnant doctor may also feel the fetal movements.Starting with 18 weeks in multiparous women, and for the first birth from 20 weeks, significantly auscultated heart tones or fetal heartbeat.Using a special tube or obstetric stethoscope doctor at each visit pregnant should listen to the heart of a child.Such control is carried out for all subsequent weeks of pregnancy, and certainly in the process of childbirth.There is another reliable sign of pregnancy reliable sign of pregnancy when there is no doubt - definition or palpation of fetal parts.Starting from 20 weeks of pregnancy can be reliably determined during the inspection of the fetus - head, back and smaller pieces, ie limbs.Those signs of pregnancy, which appear in the second half after 18 weeks and are called reliable indicate like occurs in the uterus fetal development.
After the fourth month of pregnancy, you can test the bottom of the uterus through the abdominal wall.There is a clear pattern of compliance gestational age and location of the uterus.It should also be borne in mind that every pregnancy is unique, so there are individual characteristics in the arrangement of the bottom of the uterus, which is clearly manifested in the monitoring of the pregnant woman.On the basis of changes in the magnitude of the uterus, as well as its shape and consistency can be determined the pregnancy, but by nature these signs must be attributed to the probable.At the end of the first trimester (corresponding to 11-12 weeks) is determined by the bottom of the uterus just above the symphysis or at his level.The full 16 weeks of the uterus located between the pubis and the navel.As the term uterus grows accordingly changes its location.At 24 weeks the uterus has already reached the level of the navel, in the 28 weeks of rises of 4-6 cm above the navel.Maximum growth of the uterus occurs in the third trimester.In the eighth month, that is 32 weeks, the bottom of the uterus is determined between the navel (by this time he smoothed) and the breastbone.The greatest rise in the bottom of the uterus can be determined on the ninth month of maternity (36 weeks) when the bottom of the uterus reaches the costal arches.Knowledge of such an important feature as the location of the uterus at a certain stage of pregnancy to evaluate the normal course of pregnancy and to take timely and appropriate measures in the event of complications.