Pregnancy Flashcards
(46 cards)
The diaphragm is pushed up by…
4cm
Tidal volume increases by ….
30-50%
Respiratory rate increased to…
15-17
Minute ventilation increases by….
20-50%
Cardiac output increases from
5L/min to 7L/min
Stroke volume increases from….
65ml to 80-90ml
Heart rate increases from…
75 to 85-90bpm
Systemic vascular resistance…
Decreases (down by as much as 40%)
Mediates effects of vasoconstrictors (angiotensin and vasopressin)
When is blood pressure the lowest
2nd trimester
Oxygen consumption….
Increases by 20%
What percentage experience back pain
60%
The centre of mass moves…
Anteriorly
Breasts enlarge by….
40%
Physical changes (body mass, metabolic rate, pelvis)
Increased body mass and metabolic rate
Pelvic tilt and muscle activation
What happens to vasopressin
Vasopressin release increases = water retention
Iodine
Deficiency (redirected to foetus)
Cortisol secretion….
Increases
Relaxin….
Increases (causes joint laxity)
Percentage of people who experience nausea and vomiting?
50-90%
Intragastric pressure….
Increases due to upward displacement
What metabolic fuel is favoured?
Lipolysis - preserving glucose & amino acids for use by foetus
Protein catabolism…..
Decreases
When is peak calcium demand?
3rd trimester
Exercise during pregnancy: concerns for foetus
Decreased uterine blood flow
Foetal hyperthermia
Utero-placental 02 deficiency
Hypoglycemia (compromise maternal/foetal glucose)
Mechanical stress and trauma
Increased stress hormone in circulation