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A & P of OB 1
Princinples II PULMONARY
Question | Answer |
---|---|
WHAT ARE PULMONARY SYSTEM MADE UP OF | UPPER AIRWAY; MINUTE VENTILATION; LUNG VOLUME; AND ARTERIAL OXYGENATION |
UPPER AIRWAY | CAPILLARY ENGORGEMENT -MUCOSAL LINING -UPPER RESPIRATORY TRACT |
IS THE VOCAL CORD AND THE ARYTEMOIDS SWOLLEN | YES. THEY ARE EDEMATOUS |
HOW MUCH DOES THE MINUTE VENTILATION DECREASE BY | ABOUT 50 % DURING THE FIRST TRIMESTER. -TV 40% -RR 10% |
WHAT HAPPEN TO PROGESTERONE | STIMULATED AND INCREASES MV |
WHAT DOES PROGESTERONE DON TO PACO2 | IT RESULTS IN A DECREASED RESTING MATERNAL PACO2 -FROM 40 MMHG TO 30 MMHG. -NO CHANGES IN PH (RENAL EXCRETION OF BICARB IONS). |
WHAT HAPPEN TO LUNG VOLUME IN THE 3RD MONTH OF PREGNANCY | DIAPHRAGM CEPHALAD -DECREASED FRC - 20 % (TERM) -FRC<CLOSING CAPACITY >>ATELECTASIS (SUPINE) |
WHAT IS THE ANESTHESIA CONSIDERATION | INCREASE MINUTE VENTILATION; DECREACED FRC => INCREASED ALVEOLA CONCENTRATIONS OF INHALED ANESTHETICSS |
WHAT IS FRC | RV + ERV |
CONSIDERATIONS RELATED TO CHANGES IN THE PULMONARY SYSTEMS ARE | SELECT A SMALLER CUFFED ETT (6.0-7.0) AVOID NASAL AIRWAYS ( VASCULAR CONGESTION) WEIOGHT GAIN, SHORT NECK AND LARGE BREASTS. ****CONSIDER DIFFICULT AIRWAY. RAPID ALVEOLAR CONCENTRATIONS OF 1A RAPID DESATURATION WITH APNEA PREOXYGENATE, OXYGENATE DURI |
WHAT MAY HELP DURING DL | STUBBY HANDEL ON LARYNGOSCOPE MAY HELP |