A nurse is reviewing the laboratory results of a pre-term newborn who was born at 32 weeks of gestation.
Which of the following values indicates a potential complication of necrotizing enterocolitis (NEC)?
Hematocrit 45%
Platelets 150,000/mm3
White blood cell count 25,000/mm3
Blood glucose 80 mg/dL
The Correct Answer is C
White blood cell count 25,000/mm3.
This indicates a potential complication of necrotizing enterocolitis (NEC), which is the death of intestinal tissue in premature or sick newborns. A high white blood cell count can be a sign of infection or inflammation in the bowel, which are common features of NEC.
Choice A is wrong because hematocrit 45% is within the normal range for newborns.
Hematocrit measures the percentage of red blood cells in the blood.
A low hematocrit can indicate blood loss or anemia, which can be complications of NEC, but a normal hematocrit does not rule out NEC.
Choice B is wrong because platelets 150,000/mm3 is also within the normal range for newborns.
Platelets are cells that help the blood clot. A low platelet count can indicate a consumption coagulopathy, which is a bleeding disorder that can occur in severe cases of NEC.
However, a normal platelet count does not exclude NEC.
Choice D is wrong because blood glucose 80 mg/dL is also within the normal range for newborns.
Blood glucose measures the amount of sugar in the blood.
A low blood glucose can indicate hypoglycemia, which can be caused by sepsis or other conditions that mimic NEC, but a normal blood glucose does not eliminate NEC.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Betamethasone is a corticosteroid that is given to pregnant women who are at risk of preterm delivery to enhance fetal lung maturity and prevent respiratory distress syndrome.It is usually given in two doses, 24 hours apart, and takes effect within 24 hours of administration.
Choice B.Magnesium sulfate is wrong because it is used to prevent seizures in women with severe preeclampsia or eclampsia, not to prevent respiratory distress syndrome.
Choice C.Nifedipine is wrong because it is a calcium channel blocker that is used to inhibit uterine contractions and prolong pregnancy in women with preterm labor, not to prevent respiratory distress syndrome.
Choice D.Indomethacin is wrong because it is a nonsteroidal anti-inflammatory drug that is used to inhibit prostaglandin synthesis and reduce uterine activity in women with preterm labor, not to prevent respiratory distress syndrome.However, it can also cause premature closure of the ductus arteriosus in the fetus and should be avoided after 32 weeks of gestation.
Normal ranges for gestational age are 37 to 42 weeks.
Preterm labor is defined as regular uterine contractions with cervical changes.
Correct Answer is A
Explanation
Infection on speculum examination.
Infection is a major cause of preterm labor and can lead to serious complications for the mother and the fetus.
Infection can be detected by a speculum examination that shows signs of inflammation, such as erythema, edema, discharge, or odor.
Infection can also be confirmed by laboratory tests, such as culture, gram stain, or polymerase chain reaction.Infection should be treated promptly with antibiotics and other supportive measures.
Choice B. Bleeding on speculum examination is wrong because bleeding is not a direct cause of preterm labor, but rather a sign of other conditions that may increase the risk of preterm labor, such as placenta previa, placental abruption, or cervical trauma.Bleeding should be evaluated further to determine the source and severity of the hemorrhage and to manage any complications.
Choice C. Positive fetal fibronectin test (FFN) is wrong because a positive FFN test indicates the presence of fetal fibronectin in the cervical or vaginal secretions, which is a marker of increased risk of preterm labor, but not a definitive marker.
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