7. Physiological Changes During Pregnancy



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7. physiological changes during pregnancy


7. Physiological Changes During Pregnancy

Study Session 7  Physiological Changes During Pregnancy 4

Introduction 4

Question 4

Answer 4


Learning Outcomes for Study Session 7 4

7.1  Physiological changes in the female reproductive system during pregnancy 5

7.1.1  Changes in oestrogen and progesterone 5

Question 5

Answer 5

7.1.2  Changes in the uterus, cervix and vagina 5

The uterus 5

Question 6

Answer 6

Question 7

Answer 7

The cervix 8

The vagina 8

7.2  Pregnancy-related changes in posture and joints 8

7.3  Changes in body weight during pregnancy 9

7.4  Changes in the cardiovascular system 11

7.4.1  The heart 11

Question 11

Answer 11

7.4.2  Blood volume 12

Box 7.1  Iron, haemoglobin and anaemia 12

Question 13

Answer 13

7.4.3  Blood pressure in pregnancy 13

Question 13

Answer 14

Question 14

Answer 14

7.4.4  Exercise and blood flow in pregnancy 14

7.4.5  Oedema in pregnancy 15

7.5  Respiratory changes 16

7.6  Changes in the gastrointestinal system in pregnancy 17

Question 17

Answer 17

Question 17

Answer 17

7.7  Changes in the urinary system during pregnancy 19

7.8  Skin changes 19

7.8.1  Linea nigra 19

7.8.2  Mask of pregnancy (chloasma) 19

7.8.3  Stretch marks 20

7.8.4  Sweat glands 20

7.9  Changes in the breasts 20

Summary of Study Session 7 21

Self-Assessment Questions (SAQs) for Study Session 7 22

SAQ 7.1  (tests Learning Outcome 7.2) 22

Answer 22

SAQ 7.2  (tests Learning Outcome 7.3) 22

Answer 22

SAQ 7.3  (tests Learning Outcome 7.4) 23

Answer 23

SAQ 7.4  (tests Learning Outcome 7.4) 23

Answer 23

SAQ 7.5  (tests Learning Outcome 7.5) 23

Answer 23

SAQ 7.6  (tests Learning Outcomes 7.1, 7.2, 7.4 and 7.5) 23

Answer 24


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