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A woman asks the nurse, 'What protects my baby's umbilical cord from being squashed while the baby's inside of me?' The nurse's best response is:
- A. Your baby's umbilical cord is surrounded by connective tissue called Wharton jelly, which prevents compression of the blood vessels and ensures continued nourishment of your baby.
- B. Your baby's umbilical floats around in blood anyway.
- C. You don't need to worry about things like that.
- D. The umbilical cord is a group of blood vessels that are very well protected by the placenta.
Correct Answer: A
Rationale: Wharton jelly surrounds the umbilical cord and prevents compression of the blood vessels.
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Which student statement requires further instruction?
- A. It protects against cervical cancer and genital warts.
- B. It is recommended for boys and girls, age 11-12.
- C. It is an effective treatment for precancerous cervical changes.
- D. It requires 2-3 doses.
Correct Answer: C
Rationale: The HPV vaccine is preventive, not a treatment for existing conditions.
What routine lab tests should a pregnant person have in the first trimester? Select all that apply.
- A. complete blood count (CBC)
- B. blood type and Rh factor
- C. urinalysis
- D. thyroid function tests
Correct Answer: D
Rationale: The correct answer is D: thyroid function tests. During pregnancy, thyroid function is crucial for the health of the mother and baby. Thyroid disorders can lead to complications. Testing thyroid function in the first trimester helps detect any abnormalities early.
A, B, and C are commonly performed tests in pregnancy, but they are not specific to the first trimester. A CBC helps assess overall health, blood type and Rh factor are important for identifying potential blood type incompatibilities, and urinalysis can indicate urinary tract infections or other issues. However, these tests are not unique to the first trimester and are typically done throughout pregnancy.
Fewer fetal movements than expected suggest possible:
- A. Intrauterine fetal growth restriction.
- B. Inaccurate gestational age dating.
- C. Rapid intrauterine fetal maturation.
- D. Reduced placental perfusion with fetal hypoxia.
Correct Answer: D
Rationale: Reduced placental perfusion or fetal hypoxia can lead to fewer fetal movements.
Genomic medicine is an emerging medical discipline that involves using genomic information about an individual as part of the individual’s clinical care. Which example does the nurse associate with genomic medicine?
- A. Screening of neonates for inherited, treatable genetic diseases
- B. Creating drugs specifically for the treatment of cancer
- C. Conducting trial studies to determine how drugs effect individuals
- D. Tracing and gaining knowledge about how genetic mutations occur
Correct Answer: A
Rationale: Rationale:
A is correct as genomic medicine involves using genetic information for clinical care, such as screening neonates for genetic diseases. This helps in early detection and treatment. B is incorrect as drug development is not the main focus of genomic medicine. C is incorrect as trial studies focus on drug effects, not genetic information. D is incorrect as tracing genetic mutations is related to genetics research, not clinical care in genomic medicine.
What is the purpose of maternal assays and multiple marker screenings performed in the first trimester of pregnancy?
- A. to determine the gender of the fetus
- B. to assess the risk of chromosomal abnormalities in the fetus
- C. to monitor the growth and development of the placenta
- D. to detect any potential maternal infections
Correct Answer: B
Rationale: The correct answer is B: to assess the risk of chromosomal abnormalities in the fetus. Maternal assays and multiple marker screenings in the first trimester are used to evaluate the risk of conditions like Down syndrome. These tests measure levels of certain proteins and hormones in the mother's blood to assess the likelihood of chromosomal abnormalities in the fetus. Options A, C, and D are incorrect because determining the gender of the fetus, monitoring placental growth, and detecting maternal infections are not the primary purposes of these screenings in the first trimester.