W - Postpartum Flashcards
weeks 1-4
How long does postpartum period last for?
What isit usually caused by?
- 6 wks after delivery
- Caused by: rapid drop in estrogen & progesterone
What are the uterus changes? (3)
How do clinicians track progress of uterine involution? (1)
- Uterus begins to return to its nonpregnant state (size and position) = uterine involution
- Placenta is delivered → uterine muscle fibres constrict uterine BVs ⇒ prevents postpartum haemorrhage
- Contractions continue during postpartum (further help uterine involution) = afterpains sharp pain in the abdomen
- By palpating on the top part of the uterus = fundus
- 12h after delivery → fundus can be palpated at 1 cm above the umbilicus
- Normally descends by about 1 cm (1 fingerbreadth) per day → reaches pelvic cavity by D-14
Whats the vaginal discharge after birth? When should nurses assess lochia volume on pad?
○ Stain < 2.5 cm = scant amount of lochia
○ Stain < 10 cm = light amount
○ Stain < 15 cm = moderate amount
- Complete saturation of perineal pad in 60 minutes = heavy lochia
- Complete saturation of perineal pad in 15 minutes = excessive lochia
- Irregularities in the duration, quality, and amount of lochia = can be infection / uterine subinvolution: uterus fails to return to its pre-pregnancy state
- Assess lochia volume on perineal pad every 60 minutes!!!!
What changes will occur to the Cervix & Vaginal walls? (3+3)
CERVIX
After baby delivered → cervical trauma can occur ⇒ results in edema, bruises, lacerations
After delivery
- Internal os of the cervix fully closes
- External os remains slightly open at about 2-3 centimetres at 2 to 3 days post-delivery
- End of W1 → narrows to <1 cm, appears as a transverse slit
VAGINAL WALLS
After baby delivered → trauma to vaginal walls ⇒ results in edema and lacerations
- After delivery, vagina loses folds and ridges of the vaginal walls = vaginal rugae
- Start to reappear 3-4 weeks after delivery.
- 6 weeks after delivery, the vagina reaches a near pre-pregnant size
Gastrointestinal (2)
- Most common = constipation tgt with flatulence & abdominal fullness
BECAUSE:
- progesterone levels from pregnancy remain elevated right for several days after delivery
- hormone reduces gastrointestinal tone and motility
- If client had episiotomy or perineal laceration during delivery → may avoid defecating because of pain and discomfort
- Normal gastrointestinal motility usually returns at 2 to 3 days post-delivery
Cardiovascular changes (5)
- Blood that used to supply uterus returns to systemic circulation → temporary increase in cardiac output that eventually returns to pre labour values (1h after delivery)
- Plasma volumes ⇒ also decrease after delivery
- Normal delivery related blood loss
○ 200-500 ml for vaginal delivery
○ 600 - 800 for caesarean delivery - Aldosterone & oxytocin production ↓ ⇒
↑ diuresis and fluid loss through urine + increased sweating ⇒ decrease plasma volume and return it to pre-pregnancy by 6 weeks - Hematocrit (% of blood volume made up of red blood cells) & coagulation levels normalise
■ Over 4-6 weeks
■ During this period, client remains in a hypercoagulable state = increased tendency to clot more than normal -> DVT, pulmonary embolism, stroke or other clotting disorders - First 24 hours, WBC levels ↑ up to 30,000 cells per mm3.
- increase in white blood cell count is a physiologic response
○ Not associated with an active infection
○ Takes ~ 1 week for body to normalise the white blood cell count
Renal (3)
- Kidneys typically return to normal position over next 4 weeks
- Diuresis fully restores within 12 h after delivery - Urinary retention
- loss of bladder tone and elasticity ⇒ can result in overdistension and subsequent retention of urine
- result of the pressure exerted by the foetus during delivery → decreases sensation in the urinary tract
- trauma to the bladder, urethra, or urinary meatus
can
can be also caused by:
○ Medications
○ Anaesthesia
○ Lack of privacy
Complications
- Interfere with uterine involution
- elevated or laterally displaced uterus
- provides an environment for bacterial growth and the development of urinary tract infections.
- Stress urinary incontinence
- involuntary urine leakage during exertion, like laughing, coughing, and sneezing
- due to trauma/weakened pelvic floor muscles and the bladder sphincter -> can’t properly support the bladder & urethra
- resolve stress urinary incontinence with Kegel exercises that strengthen the pelvic floor muscles
Endocrine (3)
After placenta delivery:
1. placenta hormones (oestrogen, progesterone, hCG, human placental lactogen) decrease;
2. anterior pituitary gland continues prolactin secretion (triggers milk production, prevents ovulation)
- prolactin prevents ovulation → causes lactational amenorrhea (no period) while mother breastfeeds
- breastfeeding clients: 10wks - 6 months to start ovulating & menstruating again
- 6-10 wks for non-breastfeeding clients
** both breastfeeding and non-breastfeeding clients should consider the use of contraceptive methods to prevent closely spaced pregnancies
Integumentary (2)
- Hyperpigmentations and cutaneous vascular changes like spider angioma, telangiectasia, and palmar erythema fade away after delivery.
- Purple to red stretch marks: striae gravidarum fade away to a white-ish shade, but never fully disappear
Musculoskeletal (3)
During labour, muscles are under a lot of stress ⇒ muscle fatigue (affects neck, shoulders, arms)
- Hormone relaxin - loosens pelvic ligaments and joints in preparation for labour disappears
- After delivery, uterus relieves pressure on abdominal wall and resolves previous separation of muscles (diastasis recti)
- Might require additional abdominal exercises to fully restore the muscle tone of the abdominal wall and return it to the prelabor state
Neurological
Headaches → due to changes in fluid and electrolyte balance / regional anaesthesia & dural punctures from spinal anaesthesia (**anaesthesia can cause severe headaches)
Postpartum assessment:
What are the complications & clinical manifestations of injuries to genital tract?
Complications (signs and symptoms, observable)
1. Haematomas = localised collections of blood that commonly affect the vulva, vagina, and perineum
- Large haematomas can cause haemodynamic instability + hypovolemic shock
Clinical Manifestations (additional, adverse, conditions that may develop as the disease progresses or remains untreated)
- deep, severe pain and feelings of pressure that are not relieved by the usual pain-relief options.
- intermittent bleeding, painful or difficulty emptying their bladder,
- discoloured, tender swelling over & around the hematoma.
Complications
Lacerations = tears in body tissue
- can affect uterus, cervix, vagina, perineum
1st degree lacerations
= Tear doesn’t go past the fourchette (where the two labia minora meet posteriorly)
2nd degree lacerations
- extend past fourchette
3rd degree lacerations
- may extend as far as the internal anal sphincter
4th degree lacerations
- reach all the way to rectal mucosa
Clinical Manifestations
- excessive uterine bleeding that continues even when the fundus contracts firmly
- vaginal and perineal lacerations typically cause bleeding, pain and difficulty voiding.
What are the complications (1) & clinical manifestations (4) to thrombembolic?
Complications (signs & symptoms, observable)
1. Deep vein thrombosis → blood clot develops in one of the major veins, typically those of the lower leg
- lot can break off and get lodged in other vessels -> potentially life-threatening complications like pulmonary embolism.
Clinical Manifestations (additional, adverse, conditions that may develop as the disease progresses or remains untreated)
1. swollen, red, and painful lower leg;
2. pulmonary embolism can cause:
A. dyspnea:
blockage in the pulmonary arteries reduces blood flow to the lungs, impairing oxygen exchange -> SOB
B. cough: PE -> irritated airway and surrounding tissues in the lungs, which may trigger a cough. This cough may be dry or, in some cases, may produce mucus.
C. Hemoptysis (Coughing up Blood): when a blood clot lodges in a pulmonary artery -> tissue damage & bleeding in the lung -> cough blood
Infections (2)
- usually only causes fever, malaise, tachycardia, foul smelling vaginal discharge
- if left untreated → infection can progress to potentially life-threatening septic shock or disseminated intravascular coagulation
Hypertensive disorders
Preeclampsia, eclampsia
Placenta
Complications
● Retained placenta → when the placental delivery takes more than 30 minutes
● Placenta accreta → placenta grows into the uterine wall
Clinical Manifestations
- placenta cannot be removed manually
- can cause severe postpartum haemorrhage -> hypovolemic shock
Common Risk Factors
for developing postpartum complications? (9)
- teenage pregnancy, age over 35,
- Grand multiparity (≥ 5 previous deliveries)
- Uterine overdistention
- Multiple gestation or polyhydramnios
- Preterm delivery, premature rupture of membranes
- Using certain medications
- tocolytics: relax the uterine muscles -> harder for the uterus to contract effectively after delivery -> uterine atony & increased risk of postpartum hemorrhage.
- oxytocin: used to stimulate uterine contractions to induce labor & after birth, to help the uterus contract to reduce bleeding.
- Prolonged / high doses of oxytocin can desensitize the uterus to the hormone -> uterine atony (loss of muscle tone in the uterus) after birth -> Without effective contractions, the uterus may not clamp down on blood vessels properly -> increasing risk of postpartum hemorrhage.
- Previous c-section
- Use of operative procedures (vacuum extraction, forceps use)
- postpartum complications also tend to be more common in individuals with preexisting health conditions (diabetes, heart disease)
DN TO KNOW JS READ
Diagnosis of postpartum complications? (3)
- Past medical history & physical examination
- Labs
Complete Blood Count → low haemoglobin & hematocrit in case of haemorrhage; or high WBC count, with an infection
- Inflammatory markers (CRP, ESR) → elevated with an infection
- Coagulation panel: blood test that measures ability of the blood to clot and can help diagnose thromboembolic events like DVT / pulmonary embolism (PE).
- thromboembolic event = blood clot (thrombus) forms and then moves (embolizes), blocking blood flow to other areas of the body. - Imaging studies
- Pelvic ultrasound → identify placental complications
- CT scan chest → can help identify or rule out pulmonary embolism.
Nursing Care? (6)
- Monitor for complications associated with postpartum period:
Assessment
2. Vital signs (pulse can be lower than normal at first, as body compensates for the loss of placenta + decrease in intra-abdominal pressure after foetus
- Blood pressure can be a little lower due to the normal blood loss that occurs after delivery, or it may be slightly elevated due to emotional excitement
- Report HR >100 bpm or hypotension → may indicate haemorrhage OR elevated BP 140/90 mmHg on 2 or more occasions → may indicate preeclampsia
- Normal for client’s temperature to be as high as 100 °F or 37.8 °C → sign of infection
- Ask for level of pain
Hygiene — Perineal Care:
What is the perineal area (2) and how many times is perineal care done? (2)
- area between the anus and, either the vaginal opening or the root of the penis
- close to the sites of faecal and urine excretion
- Perineal care done once daily during bath
- for specific clients, like those with diarrhoea, faecal or urinary incontinence, or vaginal bleeding or discharge, perineal care might be needed more regularly.
- encourage client to do their own
Why does perineal care need to be done? (3)
- Sanctuary for germs to flourish
- need to be kept clean to prevent infections, skin irritation
- get rid of unpleasant body odours
Hygiene - Urinary catheter care
When is a catheter used? (5)
- before, during, or after an operation to keep the bladder empty
- accurately measure amount of urine produced by critically ill clients or clients receiving IV therapy
- for clients with wounds or pressure ulcers that need to be protected from contact with urine
- clients with urinary obstruction or retention
- to collect sterile urine samples.