maternal adaptations part 2

SUPINE HYPOTENSIVE SYNDROME

what happens with supine hypotension syndrome

when the uterus compresses on the IVC and can affect aorta when the client lays flat which leads to

• decreased venous return

• decreased CO

• decreased placenta perfusion

• possible fetal hypoxia

what do we monitor for with supine hypotension syndrome?

• lightheadedness

• dizziness

• nausea

• fainting

what position do we put clients in if they have supine hypotension syndrome

lateral side lying

*if supine is needed, place a pillow or rolled blanket under one hip to shift the uterus

RESPIRATORY CHANGES

oxygen demand increases

up to 20%

uterus, fetus, and placenta use about half of the extra oxygen

how does progesterone play a part in respiratory

lowers airway resistance → the respiratory system more sensitive to CO2 → breathes deeper → mild respiratory alkalosis helping →Co2 move from fetus to the mother

it increases ventilation

how does estrogen play a role in respiratory in a pregnant client

estrogen causes swollen mucous membranes → nasal stiffness →nosebleeds, deeper voice, and ear fullness

how does relaxin play a role in the respiratory system in a pregnant client

looses rib ligaments →ribs flaring and chest widening →chest based breathing → shortness of breath

GASTROINTESTINAL

what do we give for nausea

• bland foods

• eat slow

• crackers

• dry toast before rising

pyrosis (heart burn)

progesterone relaxes the valve between the stomach and the esophagus → uterus pushes stomach up → acid flows into the esophagus easily

what are the nursing actions for pyrosis

• small frequent meals

• low fat

• remain upright after eating

ptyalism

increased saliva associated with nausea

nursing actions for ptyalism

frequent oral care and water intake

constipation happens due to

progeterone