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 B
Explanation
Choice A rationale
Increased blood pressure is typically not a sign of fluid deficit, but rather can be a compensatory mechanism in early stages or indicate other conditions. In significant fluid imbalance due to nausea and vomiting, hypotension (decreased blood pressure) is more commonly observed as a result of reduced circulating volume.
Choice B rationale
Dry mucous membranes are a reliable indicator of dehydration and fluid volume deficit. When the body loses excessive fluids due to persistent nausea and vomiting, the oral mucosa becomes less hydrated and appears dry or tacky, reflecting reduced interstitial and intracellular fluid.
Choice C rationale
Elastic skin turgor indicates adequate hydration, as the skin quickly returns to its original position when pinched. In a client experiencing a fluid imbalance due to significant vomiting, one would expect to see decreased skin turgor, where the skin remains tented or slowly returns to normal.
Choice D rationale
Decreased heart rate is not a typical finding in fluid volume deficit. Rather, the body compensates for reduced circulating blood volume by increasing the heart rate (tachycardia) to maintain cardiac output and systemic perfusion, ensuring adequate oxygen delivery to tissues.
Correct Answer is C
Explanation
Choice A rationale
Wearing the lap belt high across the abdomen is incorrect and potentially dangerous. The lap belt should be positioned low, across the pelvic bones (hips) and under the pregnant abdomen. This ensures that the force of a collision is distributed across the strong pelvic bones, minimizing direct pressure on the uterus and fetus, thereby reducing the risk of placental abruption or direct fetal trauma.
Choice B rationale
Disabling the vehicle's driver-side airbags is strongly discouraged and unsafe. Airbags are designed to provide crucial protection in a collision by deploying rapidly to cushion the occupant. While pregnant individuals should maintain a safe distance from the steering wheel to mitigate airbag impact on the uterus, disabling the airbag removes a vital safety feature and significantly increases the risk of severe injury to both the mother and the fetus in an accident.
Choice C rationale
Moving the seat as far away as possible from the steering wheel, while still maintaining control of the vehicle, is a crucial safety measure for pregnant individuals. This provides a greater crumple zone and reduces the risk of the steering wheel or dashboard impacting the gravid uterus in the event of a collision. Maintaining a distance of at least 10 inches between the sternum and the steering wheel is generally recommended to maximize safety and minimize potential fetal injury from airbag deployment.
Choice D rationale
Placing the shoulder harness across the gravid uterus is incorrect. The shoulder harness should be positioned snugly between the breasts and across the collarbone. It should never be placed directly over the abdomen or the uterus. Proper placement ensures that the upper body is restrained effectively, preventing forward motion and distributing impact forces across the chest and shoulder, thus protecting the gravid uterus from direct trauma.
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