A nurse is teaching a client who has a history of genital herpes and is at 32 weeks of gestation. Which of the following statements should the nurse include in the teaching?

A. Soy. While soy can have mild estrogen-like effects and may influence thyroid function or interact with certain medications, it is not typically associated with hypotension or increased surgical bleeding risk.
B. Black cohosh. Black cohosh is often used to manage menopausal symptoms but is known to cause vasodilation and hypotension in some individuals. Its use can increase the risk of low blood pressure during anesthesia and surgery.
C. Flaxseed. Flaxseed is commonly used for digestive health and cardiovascular support. It may have mild blood pressure–lowering effects but is not strongly linked to significant hypotension during surgery.
D. Probiotics. Probiotics support gut flora and immunity but do not affect blood pressure significantly. They are not associated with intraoperative complications like hypotension.

A. Premature atrial complexes. These are early electrical impulses originating in the atria that cause premature heartbeats, but they do not consistently lengthen the P-R interval. The P-R interval usually remains within normal limits unless another condition is present.
B. First-degree atrioventricular (AV) block. A constant P-R interval longer than 0.20 seconds (normal range: 0.12–0.20 seconds) is characteristic of a first-degree AV block. A P-R interval of 0.35 seconds indicates a prolonged conduction delay through the AV node, consistent with this dysrhythmia.
C. Complete heart block. In complete (third-degree) heart block, there is no consistent relationship between P waves and QRS complexes, and the P-R interval is not constant. This is not consistent with a stable, prolonged P-R interval.
D. Atrial fibrillation. Atrial fibrillation is marked by irregularly irregular rhythm and absent, unidentifiable P waves, not a consistent P-R interval. The atria are quivering, not contracting in a coordinated way.