A practical nurse has gathered data on a laboring client who prefers nonpharmacological methods for pain management.
The client is experiencing anxiety, has an elevated blood pressure, and has erratic, rapid respirations. Which of the following methods will the practical nurse reinforce that will most likely aid in decreasing blood pressure and respiratory rate?

Choice A rationale

At 16 weeks of gestation, the uterine fundus has not yet reached the umbilicus. The umbilicus is typically reached around 20 weeks of gestation. Palpating the fundus at the umbilicus at 16 weeks would suggest a discrepancy in gestational age or a potential complication such as polyhydramnios or multiple gestation, warranting further investigation.

Choice B rationale

The uterine fundus is palpable at 16 weeks of gestation. By this stage, the uterus has grown significantly and ascended out of the pelvis, making it accessible to abdominal palpation. Failure to palpate the fundus at this stage could indicate an inaccurate gestational age, ectopic pregnancy, or other uterine abnormalities, requiring clinical correlation.

Choice C rationale

At 16 weeks of gestation, the uterine fundus is typically palpable approximately halfway between the symphysis pubis and the umbilicus. This anatomical landmark serves as a reliable indicator of gestational age during the second trimester. The fundus ascends by approximately 1 cm per week after 12 weeks of gestation, providing a consistent growth pattern.

Choice D rationale

At 16 weeks of gestation, the uterine fundus is well above the pubic bone. It typically becomes palpable just above the pubic bone around 12 to 14 weeks of gestation as it rises out of the pelvic cavity. Finding the fundus only just above the pubic bone at 16 weeks would suggest a lag in uterine growth or an inaccurate gestational age assessment.

Choice A rationale

Staphylococcus aureus is the most prevalent bacterial pathogen responsible for osteomyelitis, a bone infection. This bacterium possesses virulence factors such as adhesins, which enable it to adhere to bone tissue, and various toxins that contribute to tissue damage and inflammation. It can enter the bone through direct inoculation, contiguous spread, or hematogenous dissemination.

Choice B rationale

Haemophilus influenzae can cause invasive infections, including meningitis and epiglottitis, particularly in unvaccinated children. While it can cause localized infections, it is not a common cause of osteomyelitis. Its primary colonization sites and mechanisms of infection are generally distinct from those leading to bone infections.

Choice C rationale

Escherichia coli is a common inhabitant of the gastrointestinal tract and a frequent cause of urinary tract infections and sepsis, particularly in neonates. While it can cause osteomyelitis, especially in specific populations such as neonates or individuals with compromised immune systems, it is significantly less common than Staphylococcus aureus as an overall cause.

Choice D rationale

Streptococcus pneumoniae is a leading cause of bacterial pneumonia, otitis media, and meningitis. While it can cause invasive infections and has been implicated in rare cases of osteomyelitis, it does not possess the same propensity for bone tissue colonization as Staphylococcus aureus, making it a much less common etiologic agent for bone infections.