A nurse is caring for a client who is at 16 weeks of gestation and reports a sudden gush of vaginal fluid.
Which of the following findings indicates premature rupture of membranes?
Vaginal fluid has a pH of 5.3.
Nitrazine paper turns dark blue.
Vaginal fluid is negative for ferning.
Nitrazine paper turns yellow.
The Correct Answer is B
Choice A rationale
Vaginal fluid with a pH of 5.3 is acidic and falls within the normal range for vaginal secretions, which are typically between 3.8 and 4.5. Amniotic fluid is alkaline, with a pH of 7.0 to 7.5. Therefore, an acidic pH does not indicate premature rupture of membranes.
Choice B rationale
Nitrazine paper turning dark blue indicates an alkaline pH, which is characteristic of amniotic fluid (pH 7.0-7.5). The presence of alkaline fluid in the vagina suggests premature rupture of membranes, as normal vaginal secretions are acidic.
Choice C rationale
A positive ferning test, where amniotic fluid dries in a fern-like pattern on a microscope slide, indicates the presence of amniotic fluid. A negative ferning test would suggest that the fluid is not amniotic fluid.
Choice D rationale
Nitrazine paper turning yellow indicates an acidic pH, which is consistent with normal vaginal secretions or urine. This finding would suggest that the fluid is not amniotic fluid, as amniotic fluid is alkaline and would turn the paper blue or dark blue.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is []
Explanation
Rationale for correct condition Endometritis is a postpartum uterine infection, often following cesarean birth and prolonged rupture of membranes. It presents with a boggy, tender uterus, foul-smelling lochia, fever or chills, and malaise. This client’s symptoms—uterine tenderness, foul lochia, and systemic signs—are classic for endometritis. Bottle-feeding increases risk due to lack of uterine oxytocin stimulation. Early recognition is critical to prevent sepsis.
Rationale for correct actions Oxytocin promotes uterine contractions, aiding involution and reducing bacterial proliferation in retained lochia. A firm uterus also minimizes bleeding. Broad-spectrum antibiotics target polymicrobial pathogens common in endometritis, including Escherichia coli and anaerobes. Prompt antibiotic therapy reduces systemic spread and improves recovery.
Rationale for correct parameters Lochia characteristics reflect uterine healing; foul odor and increased volume suggest ongoing infection. Monitoring changes helps evaluate treatment response. Temperature is a key systemic marker of infection; decreasing fever indicates therapeutic effectiveness. Persistent fever may signal treatment failure or complications.
Rationale for incorrect conditions Urinary tract infection typically presents with dysuria, urgency, and suprapubic pain—not uterine tenderness or foul lochia. Deep vein thrombosis involves unilateral leg pain, swelling, and warmth, which are absent here. Engorgement causes breast discomfort, not systemic symptoms or uterine findings.
Rationale for incorrect actions Increased fluid intake supports general health but does not directly treat endometritis. Anticoagulants are used for thrombosis, not uterine infection. Ice packs relieve breast engorgement but are unrelated to uterine infection management.
Rationale for incorrect parameters Leg circumference is relevant for DVT, not uterine infection. Nipple integrity is important for breastfeeding issues, not applicable here. Bladder distention is not contributing to uterine tenderness or infection in this case.
Take home points
- Endometritis is a common postpartum infection, especially after cesarean birth and prolonged rupture of membranes.
- Key signs include uterine tenderness, foul-smelling lochia, and systemic symptoms like fever or chills.
- Management includes uterotonic agents and broad-spectrum antibiotics.
- Differentiate from UTI, DVT, and breast engorgement based on localized versus systemic findings.
Correct Answer is {"A":{"answers":"A,B"},"B":{"answers":"A"},"C":{"answers":"A,B"},"D":{"answers":"A"},"E":{"answers":"A,B"}}
Explanation
? Rationales for Each Condition
1️⃣ Neonatal abstinence syndrome (NAS)
Definition: NAS is a withdrawal syndrome in newborns caused by in utero exposure to opioids or other substances. It typically presents within 24–72 hours after birth.
Findings and Scientific Explanation:
- Cry characteristics: A high-pitched, inconsolable cry is a hallmark of NAS due to autonomic nervous system dysregulation.
- Nasal findings: Sneezing and nasal stuffiness are common due to increased autonomic activity and are not typically seen in hypoglycemia.
- Tremor: Tremors, especially when undisturbed, are due to central nervous system irritability from opioid withdrawal.
- Maternal urine drug screen: A positive result for opioids confirms in utero exposure, supporting a diagnosis of NAS.
- Respiratory rate: Tachypnea (e.g., 65/min on Day 3) is common in NAS due to increased metabolic demand and autonomic instability. Normal neonatal respiratory rate is 30–60/min.
2️⃣ Hypoglycemia
Definition: Neonatal hypoglycemia is defined as a plasma glucose concentration less than 40–45 mg/dL in the first 24 hours of life.
Findings and Scientific Explanation:
- Cry characteristics: Hypoglycemia may cause irritability or weak cry due to neuroglycopenia.
- Tremor: Tremors or jitteriness can result from adrenergic stimulation in response to low glucose levels.
- Respiratory rate: Tachypnea may occur as a compensatory response to metabolic acidosis secondary to hypoglycemia. The newborn had a glucose of 35 mg/dL on Day 1, which is below the normal range (>40–45 mg/dL).
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