A nurse is assessing a client for pre-term labor.
Which diagnostic test should the nurse anticipate being ordered for this client?
Ultrasound
Blood count
Urine culture
Amniocentesis
The Correct Answer is A
Ultrasound.
An ultrasound can help determine the gestational age, fetal growth, placental location, and amniotic fluid volume of the fetus.
These factors can affect the risk of pre-term labor and delivery.
An ultrasound can also detect cervical changes that may indicate pre-term labor.
Choice B is wrong because a blood count is not specific for pre-term labor.
It may be done to check for anemia, infection, or other conditions that may affect the pregnancy, but it does not directly assess the risk of pre-term labor.
Choice C is wrong because a urine culture is not specific for pre-term labor.
It may be done to check for urinary tract infection, which can cause pre-term labor, but it does not directly assess the risk of pre-term labor.
Choice D is wrong because an amniocentesis is not usually done for pre-term labor.
It may be done to check for fetal lung maturity, chromosomal abnormalities, or infections, but it is an invasive procedure that carries some risks and complications.
It does not directly assess the risk of pre-term labor.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Nitrazine paper test.
This test involves putting a drop of fluid obtained from the vagina onto paper strips containing nitrazine dye.
The strips change color depending on the pH of the fluid.The strips will turn blue if the pH is greater than 6.0, which indicates the presence of amniotic fluid.This test can help confirm rupture of membranes (ROM) in pregnancy, especially when preterm labor is suspected.
Choice B. Ferning test.This test involves examining a sample of vaginal fluid under a microscope and looking for a fern-like pattern that is formed by dried amniotic fluid crystals.This test can also help confirm ROM, but it is less reliable than the nitrazine test because other substances such as cervical mucus, semen, or blood can also cause ferning.
Choice C. Amniotic fluid index.This test involves measuring the amount of amniotic fluid in the uterus using ultrasound.This test can help assess the fetal well-being and detect conditions such as oligohydramnios (low amniotic fluid) or polyhydramnios (high amniotic fluid).This test cannot confirm ROM by itself, but it can be used in combination with other tests to evaluate the status of the pregnancy.
Choice D. Biophysical profile.This test involves using ultrasound and a fetal monitor to assess the fetal heart rate, breathing, movement, muscle tone, and amniotic fluid volume.
Correct Answer is D
Explanation
Terbutaline can cause low potassium levels in the blood, which can lead to muscle weakness, cramps, and cardiac arrhythmias.
This is a potential adverse effect of the medication that should be reported to the provider.
Choice A is wrong because tachycardia is a common side effect of terbutaline that does not usually require medical attention.
Terbutaline works by stimulating beta-adrenergic receptors, which can increase the heart rate.
Choice B is wrong because hypotension is not a typical side effect of terbutaline.Terbutaline can actually cause elevated blood pressure in some cases.
Choice C is wrong because hyperglycemia is not a common side effect of terbutaline.Terbutaline can cause transient hyperglycemia in pregnant women, but this is not a reason to stop the medication.
Normal ranges for potassium are 3.5-5.0 mEq/L and for blood glucose are 70-110 mg/dL.
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