A nurse is calculating a client's expected date of birth using Nägele's rule. The client tells the nurse that her last menstrual cycle started on November 27th. Which of the following dates is the client's expected date of birth?

The correct answer is B. Uteroplacental insufficiency.

A. Umbilical cord compression is more commonly associated with variable decelerations, not late decelerations. Variable decelerations are characterized by abrupt decreases and increases in the fetal heart rate.

B. Late decelerations are indicative of uteroplacental insufficiency.

Uteroplacental insufficiency refers to a decrease in blood flow and oxygen supply from the mother to the fetus. Late decelerations occur after the peak of the contraction and may suggest inadequate oxygenation to the fetus.

C. Fetal head compression is associated with early decelerations, not late decelerations. Early decelerations typically coincide with the contractions and are considered a normal response to head compression during contractions.

D. Maternal bradycardia is not typically associated with late decelerations. Late decelerations are primarily related to issues with oxygenation and blood flow to the fetus.

The correct answer is B. Explain to the client this is an expected occurrence.

A. Tell the client to follow up with a dermatologist: While it's always good to encourage clients to seek professional advice if they have concerns, in the context of melasma during pregnancy, it is generally a normal physiological change. A dermatologist may not be needed specifically for this condition unless there are other unusual symptoms.

B. Explain to the client this is an expected occurrence: This is the correct action. It's important for the nurse to reassure the client that blotchy hyperpigmentation on the forehead is a common and expected change during pregnancy. Providing education and support can help alleviate the client's concerns.

C. Instruct the client to increase her intake of vitamin D: Blotchy hyperpigmentation is not typically addressed by increasing vitamin D intake. While adequate nutrition is important during pregnancy, this specific concern is related more to hormonal changes than nutritional deficiencies.

D. Inform the client she might have an allergy to her skin care products: Melasma is primarily related to hormonal changes in pregnancy rather than an allergic reaction to skin care products. While assessing for allergies is essential in certain situations, it may not be the primary concern in this case.