Are uterine contractions occurring before 37th week of gestation
RISK FACTORS HIT-MP
HPN
Incompetent cervix
Third trimester bleeding
Multiple gestation
Polyhydramnios (excessive amount of Amniotic fluid)
CLINICAL MANIFESTATION
(Primary) Contractions occurring in increasing frequency & intensity
Premature ROM (rupture of membranes)
MANAGEMENT
If there is (-) bleeding & (-) Cervical Dilation
1. Administration of TOCOLYTIC MEDICINES = meds used to suppress contractions
a) RITODRINE (Yutopar) = muscle relaxant to control Uterine contractionSIDE EFFECTS
- Hypotension
- Tachycardia
- Altered fetal heart rate
b) ISOXSUPRINE (Vasodilan) = Intravenous (IV) vasodilator
SIDE EFFECTS
- Hypotension
- Tachycardia
SIDE EFFECTS
- Tachycardia
- Nervousness & tremor
SIDE EFFECTS
- Nausea & vomiting
- Can cause Mental confusion
1. Give ANALGESICS in a minimum dosage to avoid FETAL RESPIRATORY DEPRESSION
2. STEROIDS - BETAMETHASONE (Celestone) are given to help in FETAL LUNG MATURITY = it hastens the production of “surfactants”
Contraindications HID
- HPN
- Infection (d/t depressed Immune System)
- Diabetes Mellitus (which contains Polysaccharides)
NURSING CARE PAM
- Provide emotional support
- Assist in the delivery if there are maternal complications present
- Minimize fetal complication – if SUPINE = causes FHR to decrease, position the pt in LEFT LATERAL
- abnormal implantation of the placenta in the Lower Uterine segment
- Advanced maternal age
- Increasing parity
- Rapid succession of pregnancy
- LOW LYING/ MARGINAL PLACENTA – placenta is approaching the RIM of the Internal cervical Os, but not covering it.
- PARTIAL– placenta partially covers the Internal cervical Os
- COMPLETE – totally covers the Internal cervical Os
- Placental scan – CT scan of the placenta
Ask pt for Hx of allergies to seafood (Iodine)
After the procedure, educate the pt to increase fluid intake - Ultrasound – to ascertain the position of the placenta & distinguish its type
US is repeated on the last part of the 3rd trimester d/t “MIGRATING PLACENTA PHENOMENON” = its just an illusion that the placenta is rising on the uterus
- (primary) Painless, bright RED vaginal bleeding
- d/t the tearing of the placental attachment, as a consequence of the Internal Os dilation
- Starts @ 7 months
- Bleeding may STOP, but can reoccur
IF IT OCCURS @ less than 37 WEEKs AOG;
- Provide CBR
- Monitor V/S & FHR
- Monitor Hgb/Hct status (index to the hydrating status of the pt or FLUID BALANCE)
- Prepare O2 & blood for possible transfusion
- NEVER attempt Pelvic/ rectal exam’n
= If the MD’s will perform an IE: prepare your DOUBLE SET UP
= NSD if Marginal Placenta previa & with decreased bleeding
- CAUTION! Be careful that the NURSE does not perform an IE, because it will cause BLEEDING in pts = indication for CSD.
- CS PREP
1. Abdomino-perineal prep
2. give pre op meds – CHECK the BP before & after the administration
3. insert the foley cath (Female: french 12-14)
- Hemorrhage
- Infection
- Prematurity
- Provide Nsg care associated with hemorrhage BAMP
1. blood typing & cross matching
2. administer meds, as ordered
3. monitor I & O
4. provide IVF - Assess for complications associated with Placenta previa
1. PP hemorrhage
2. Lower Uterine segment is FRAGILE
- Premature separation of normally implanted placenta leading to Hemorrhage
- PIH
- Polyhydramnios
- Multiple pregnancies
- Direct trauma
- Increasing maternal age & parity
- Short umbilical cord
- Hypofibrinogenemia
- EXTERNAL – blood escapes from the vagina with separation of the placenta
- CONCEALED or INTERNAL – hemorrhage occurs within the uterine cavity
- PARTIAL SEPARATION – may occur with external bleeding/ be associated with concealed bleeding
- COMPLETE SEPARATION – most severe & profound symptoms of shock
- MARGINAL – like Duncan’s presentation
- CENTRAL – like Schultz presentation
- If MARGINAL, (quite rare) there is presence of painless vaginal bleeding
- If CENTRAL, (most common) presence of cramp like abdominal pain/ sharp like stabbing pain in the fundus, hard, board like uterus, rigid abdomen, hypovolemic shock symptoms, hemorrhage may be concealed
- Medical Tx of blood loss & shock,
- prior to Surgery – type & cross match blood for BT
- Surgical emergency à CS delivery
- Provide Nsg care associated with hemorrhage
- Assess for early COMPLICATIONS:
= concealed uterine hemorrhage & damage to uterine wall BECAUSE of large amounts of thromboplastin released into the maternal bloodstream.
= Administer HEPARIN, blood, frozen plasma, & cryoprecipitate
HEPARIN = monitor PTT (Partial Thromboplastin Time)
antidote: PROTAMINE SULFATE
= Administer WARFARIN or COUMADIN
monitor PT (Prothrombin Time)
antidote: AQUAMEPHYTON (phytomenadione)
2. HYPOVOLEMIC SHOCK
3. COUVELAIRE/ COUVELARIE UTERUS
= bleeding in the MYOMETRIUM causes uterine muscles to lose its power to contract, uterus becomes ECCHYMOTIC & COPPER colored, MANAGEMENT: hysterectomy
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