POSITION

22問 • 6ヶ月前

問題一覧

REFERS TO THE RELATIONSHIP OF THE PRESENTING PART TO A SPECIFIC QUADRANT OF THE WOMAN’S PELVIS.

POSITION

PELVIC TYPES - classic female pelvis inlet, well rounded (oval); ideal for delivery - most ideal for childbirth (50% of women)

GYNECOID

PELVIC TYPES - resembling a male pelvis, narrow and heart-shaped; usually requires cesarean section or difficult forceps delivery (20% of women)

ANDROID

PELVIC TYPES - flat, broad pelvis;rarest type of pelvis; usually not adequate but may still allow vaginal delivery (5% of women)

PLATYPELLOID

PELVIC TYPES - similar to the pelvis of anthropoid ape; long & deep. Narrow transverse & wide AP does not conform to the head of the baby;(25% of women)

ANTRHOPOID

DIVISIONS OF THE PELVIS: “SUPERIOR HALF”; SUPPORTS THE UTERUS DURING THE LATE MONTHS OF PREGNANCY & AIDS IN DIRECTING THE FETUS INTO THE TRUE PELVIS FOR BIRTH.

FALSE PELVIS

DIVISIONS OF THE PELVIS: “INFERIOR HALF”; FORMED BY THE PUBES IN FRONT, THE ILIA & THE ISCHIA ON THE SIDES & THE SACRUM & COCCYX

TRUE PELVIS

THE FALSE PELVIS IS DIVIDED FROM THE TRUE PELVIS ONLY BY AN IMAGINARY LINE: THE ____________ DRAWN FROM THE SACRAL PROMINENCE AT THE BACK TO THE SUPERIOR ASPECT OF THE SYMPHYSIS PUBIS AT THE FRONT OF THE PELVIS.

LINEA TERMINALIS

The True Pelvis consists of the following parts: entrance to the true pelvis

PELVIC INLET

DISTANCE BETWEEN THE ANTERIOR SURFACE OF THE SACRAL PROMINENCE AND THE ANTERIOR SURFACE OF THE INFERIOR MARGIN OF THE SYMPHYSIS PUBIS. (MEASURED BY INTERNAL EXAMINATION) ADEQUATE = 12.5 TO 13 CMS - suggests the AP diameter of the pelvic inlet ( the narrowest diameter at that level, or the one that is most apt to cause a misfit with the fetal head) - To measure, 2 fingers are introduced vaginally and pressed inward and upward until the middle finger touches the sacral

DIAGONAL CONJUGATE

- THE DISTANCE BETWEEN THE ANTERIOR SURFACE OF THE SACRAL PROMINENCE AND THE POSTERIOR SURFACE OF THE INFERIOR MARGIN OF THE SYMPHYSIS PUBIS. = Average 10.5 TO 11 cm - MEASUREMENT CANNOT BE MADE DIRECTLY BUT IS ASCERTAINED BY SUBTRACTING 1.5 TO 2 CM FROM THE DIAGONAL CONJUGATE.( SYMPHYSIS PUBIS DIAMETER IS ASSUMED TO BE 1.5 TO 2 CM IN DEPTH)

TRUE CONJUGATE

- THE DISTANCE BETWEEN THE MIDPOINT OF THE SACRAL PROMONTORY TO THE UPPER MARGIN OF THE SYMPHYSIS PUBIS. - CAN ONLY BE MEASURED RADIOGRAPHICALLY

OBSTETRIC CONJUGATE

True Pelvis consists of the following parts: - THE SPACE BETWEEN THE INLET & THE OUTLET. THIS IS NOT A STRAIGHT LINE BUT A CURVED PASSAGE.THE CURVATURE IS SO DESIGNED BY NATURE TO CONTROL THE SPEED OF DESCENT OF THE FETAL HEAD. RAPID FETAL DESCENT CAN RESULT TO RUPTURE OF CEREBRAL ARTERIES DUE TO THE SUDDEN CHANGE OF PRESSURE. - Interspinous ( smallest diameter of the pelvis ) 10 cm - AP diameter at level of ischial spines = 11.5 cm

MIDPELVIS

True Pelvis consists of the following parts: - THE INFERIOR PORTION OF THE PELVIS. THE MOST IMPORTANT DIAMETER OF THE OUTLET IS ITS TRANSVERSE OR BI-ISCHIAL DIAMETER( DISTANCE BETWEEN THE TWO ISCHIAL TUBEROSITIES) WHICH IS ABOUT 11.5 CM

PELVIC OUTLET

- Distance between the ischial tuberosities or the transverse diameter of the OUTLET( the narrowest diameter at that level) or the one most apt to cause misfit. A pelvimeter is generally used but a ruler can be used or clenched fist measurement. - Adequate: 11 cm ( because it will allow the widest diameter of the fetal head or 9 cm to pass freely.

ISCHIAL TUBEROSITY DIAMETER

PHASES OF UTERINE CONTRACTIONS: WHEN THE INTENSITY OF THE CONTRACTIONS INCREASES “ building up”

INCREMENT

PHASES OF UTERINE CONTRACTIONS: WHEN THE CONTRACTIONS ARE AT ITS STRONGEST

ACME

PHASES OF UTERINE CONTRACTIONS: WHEN THE INTENSITY DECREASES ( “letting up”)

DECREMENT

CHARACTERISTICS OF UTERINE CONTRACTIONS: REFERS TO THE LENGTH OF CONTRACTIONS STARTING FROM THE BEGINNING OF ONE CONTRACTION TO THE END OF SAME CONTRACTION.

DURATION

CHARACTERISTICS OF UTERINE CONTRACTIONS: STARTS FROM THE BEGINNING OF ONE CONTRACTION TO THE BEGINNING OF THE NEXT CONTRACTION.

FREQUENCY

CHARACTERISTICS OF UTERINE CONTRACTIONS: REFERS TO THE REGULARITY OF CONTRACTIONS. IT STARTS FROM THE END OF ONE CONTRACTION TO THE BEGINNING OF THE NEXT CONTRACTION.

INTERVAL

CHARACTERISTICS OF UTERINE CONTRACTIONS: REFERS TO THE STRENGTH OF UTERINE CONTRACTIONS.

INTENSITY

HCI

JHAYS · 5問 · 1年前

HCI