A nurse is reinforcing teaching with a 36-year-old client who is at 16 weeks of gestation and is scheduled for an amniocentesis. The nurse should include in the teaching that an amniocentesis is performed to identify which of the following findings?
Chromosomal abnormalities
Placental circulation
Rh incompatibility
Fetal breathing movements
The Correct Answer is A
Rationale:
A. Chromosomal abnormalities: Amniocentesis involves analyzing amniotic fluid to detect genetic and chromosomal disorders such as Down syndrome, trisomy 18, and neural tube defects. It is typically performed between 15 and 20 weeks gestation for diagnostic accuracy during this stage of fetal development.
B. Placental circulation: Assessment of placental blood flow and circulation is usually done via Doppler ultrasound, not amniocentesis. Amniocentesis does not evaluate the vascular function or perfusion status of the placenta.
C. Rh incompatibility: While amniocentesis may reveal fetal anemia due to Rh sensitization in rare cases, it is not the primary test used for diagnosing Rh incompatibility. Blood antibody screening and Doppler assessment of the middle cerebral artery are preferred for Rh-related concerns.
D. Fetal breathing movements: Fetal breathing is assessed through a biophysical profile or real-time ultrasound, not via amniotic fluid sampling. Amniocentesis does not provide information about the fetus’s respiratory activity or movement patterns.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Respiratory acidosis: Chronic diarrhea typically causes metabolic acidosis due to loss of bicarbonate in the stool, not respiratory acidosis. Respiratory acidosis results from hypoventilation and CO₂ retention, unrelated to diarrhea.
B. Hypertension: Chronic diarrhea often leads to fluid and electrolyte imbalances causing hypotension or low blood pressure due to dehydration, rather than hypertension.
C. Hypokalemia: Diarrhea causes significant potassium loss through the gastrointestinal tract, leading to hypokalemia. Low potassium levels can result in muscle weakness, cramps, and cardiac arrhythmias.
D. Hypermagnesemia: Magnesium is usually lost during diarrhea, which more commonly leads to hypomagnesemia rather than elevated magnesium levels. Hypermagnesemia is rare unless there is excessive intake or renal failure.
Correct Answer is A
Explanation
Rationale:
A. Preeclampsia: Methylergonovine causes vasoconstriction and increases blood pressure, which can be dangerous in clients with preeclampsia. Administering this medication in such cases can elevate the risk of stroke or seizure due to worsening hypertension.
B. An allergy to penicillin: Methylergonovine is not a penicillin-based medication, so a penicillin allergy does not present a known contraindication or concern. Caution is unnecessary unless there is a known allergy to ergot alkaloids.
C. Gestational diabetes mellitus: Methylergonovine does not significantly impact blood glucose levels or insulin sensitivity. Therefore, it can be used safely in clients with gestational diabetes when indicated for hemorrhage control.
D. Cholelithiasis: There is no direct interaction or exacerbation of gallbladder disease with methylergonovine. The medication primarily acts on uterine smooth muscle and vascular tone, not on the biliary system.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.