A client is coming in for their 20-week prenatal check.
Where would the nurse correctly measure the fundal height for a gestation of 20 weeks?

Choice A rationale

The use of an antidepressant, such as a selective serotonin reuptake inhibitor (SSRI), can occasionally cause sexual dysfunction or menstrual irregularities, like amenorrhea or menorrhagia, as a side effect due to its influence on neurotransmitter levels, particularly serotonin. The client's heavy and irregular menses may be a consequence, warranting further inquiry regarding the specific drug, dosage, and start date relative to the onset of the menstrual issues to assess for a correlation. This may require further investigation.

Choice B rationale

Irregular menses, characterized by variability in cycle length and bleeding patterns (normal cycle length is 21-35 days), are concerning, especially when coupled with heavy bleeding (menorrhagia) and a history of a sexually transmitted infection (STI) like trichomoniasis, which suggests potential pelvic inflammatory disease (PID). This may indicate an underlying endocrine disorder such as polycystic ovary syndrome (PCOS) or other structural issues, necessitating further investigation, including hormonal assays or pelvic ultrasound, to determine the etiology.

Choice C rationale

A blood pressure of 108/74 mmHg is considered within the normal, healthy range for an adult (normal is generally ≤ 120/80 mmHg). Hypotension is typically defined as a systolic pressure <90 mmHg or a diastolic pressure <60 mmHg, or a drop in blood pressure that causes symptoms. Therefore, this specific vital sign is reassuring and does not require immediate or extensive further investigation unless the client reports symptoms of dizziness or syncope.

Choice D rationale

A Body Mass Index (BMI) of 29.75 kg/m falls within the overweight category (BMI 25.0-29.9 kg/m), nearing obesity (BMI ≥ 30.0 kg/m). While excess adiposity can contribute to menstrual irregularity due to estrogen production by adipose tissue, promoting anovulation, the irregular menses is the immediate clinical problem. The BMI itself is an important risk factor for future health issues but is not the most urgent aspect requiring immediate in-depth investigation compared to the abnormal bleeding pattern.

Choice A rationale

The statement is incorrect because many herbal remedies and supplements are not regulated by the FDA and lack rigorous safety and efficacy data for use in pregnancy. Some herbs contain compounds that can be abortifacient, teratogenic, or affect uterine tone and clotting, posing significant risks to the developing fetus or the pregnancy itself, requiring cautious avoidance.

Choice B rationale

This statement is correct. Many allergy medications and other prescription/over-the-counter drugs have established safety profiles in pregnancy, and a healthcare provider is best positioned to weigh the therapeutic benefits against potential fetal risks. Consulting a doctor ensures a risk-benefit analysis based on current medical evidence and the specific stage of gestation.

Choice C rationale

This statement is correct. Folic acid supplementation (400 to 800 mcg daily) is crucial, ideally starting before conception and continuing throughout the first trimester (12 weeks). Adequate intake is essential for early fetal neural tube development to prevent defects like spina bifida and anencephaly, as the neural tube closes within the first 28 days post-conception.

Choice D rationale

This statement is correct. X-rays expose the developing fetus to ionizing radiation, which carries a risk of teratogenic effects, especially in the first trimester. While necessary diagnostic procedures are often modified or shielded, the principle of ALARA (As Low As Reasonably Achievable) is followed, and the provider must be informed of the pregnancy.