A nurse is reviewing the laboratory results of a client who is at 29 weeks of gestation and has pre-term labor.
Which of the following results indicates an infection that can trigger pre-term labor?
White blood cell count of 12,000/mm3
Hemoglobin level of 11 g/dL
Platelet count of 250,000/mm3
Blood glucose level of 90 mg/dL
The Correct Answer is A
A white blood cell count of 12,000/mm3 indicates an infection that can trigger pre-term labor. The normal range for white blood cell count in pregnancy is 5.7-15.0×10 9 /L, which is equivalent to 5,700-15,000/mm3.
A count above this range suggests an inflammatory response to an infection.
Choice B is wrong because a hemoglobin level of 11 g/dL is within the normal range for pregnancy, which is 10-14 g/dL.
Choice C is wrong because a platelet count of 250,000/mm3 is within the normal range for pregnancy, which is 150,000-400,000/mm3.
Choice D is wrong because a blood glucose level of 90 mg/dL is within the normal range for pregnancy, which is 70-110 mg/dL.
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Related Questions
Correct Answer is A
Explanation
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that helps close the ductus arteriosus, a blood vessel connecting two arteries of the heart (aorta and pulmonary artery) in fetus.This drug is effective only among premature babies.
Choice B.Prostaglandin E1 is wrong because it is used to keep the ductus arteriosus open in some congenital heart defects that require surgery.
Choice C.Furosemide is wrong because it is a diuretic that reduces fluid retention and blood pressure, but does not affect the ductus arteriosus.
Choice D.Digoxin is wrong because it is a cardiac glycoside that strengthens the heart muscle contractions and regulates the heart rhythm, but does not affect the ductus arteriosus.
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.
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