A nurse is assessing a client at their first prenatal appointment. The client reports that the first day of their last menstrual period was September 17. Which of the following accurately represents the client's estimated date of birth using Naegele's Rule?

A) Milia:
Milia are tiny white or yellowish cysts that appear on a newborn's face, particularly on the nose, chin, or forehead. They are caused by the accumulation of keratin under the skin. Milia usually disappear within a few weeks of life and are not related to the pinkish marks described in the question.

B) Telangiectatic nevi (stork bites):
This finding is consistent with telangiectatic nevi, also known as stork bites. These are flat, irregular, pinkish-red marks often found on the forehead, eyelids, and nape of the neck. They are caused by dilated capillaries in the skin and are common in newborns. The marks blanch when pressed and are usually harmless, disappearing within the first 1-2 years of life. This is the correct answer based on the description provided in the question.

C) Nevus flammeus (port wine stain):
A port wine stain is a dark red to purple, flat birthmark caused by capillary malformations. Unlike stork bites, a port wine stain does not blanch when pressed and is typically present for life. It usually appears on the face, neck, or arms, and the coloration remains the same over time.

D) Nevus vasculosus (strawberry mark):
A strawberry mark is a raised, red, and bumpy birthmark that results from proliferation of capillaries. These marks typically appear in the first few weeks of life and grow in size before eventually shrinking and disappearing by the age of 5-10 years. Strawberry marks are not flat, pinkish, or blanchable, making this option unlikely in the scenario described.

Findings that require follow-up:

Uterus boggy at 24 hr postpartum:

A boggy uterus indicates poor uterine contraction, which can lead to postpartum hemorrhage. Effective uterine contraction is crucial to prevent excessive bleeding after delivery, and this finding warrants immediate intervention, such as fundal massage or administering uterotonic medications.

Lochia rubra with foul odor:

Foul-smelling lochia is a sign of potential infection, often indicative of endometritis, which is an infection of the uterine lining. The presence of this odor requires prompt follow-up and possibly antibiotic treatment to prevent further complications.

Elevated temperature (38.3°C/100.9°F) at 24 hr postpartum:

A postpartum fever may indicate infection, such as endometritis or a urinary tract infection (UTI). This fever should be investigated further to determine the cause and appropriate treatment, as untreated infections can lead to serious complications.

Increased heart rate (105/min) at 24 hr postpartum:

Tachycardia in the postpartum period can be a sign of infection or early signs of hemodynamic instability, possibly due to blood loss or infection. Close monitoring is necessary, and the healthcare provider should be notified to evaluate the cause and initiate treatment if necessary.