Which of the following observations signals the onset of puberty in male adolescents

单项选择题The nurse is providing home care instructions to a client who has recently had a skin graft. Which instruction is most important for the client to remember（）

A. Use cosmetic camouflage techniques.
B. Protect the graft from direct sunlight.
C. Continue physical therapy.
D. Apply lubricating lotion to the graft site.

单项选择题The nurse is caring for a client with left-sided heart failure. To reduce fluid volume excess, the nurse can anticipate using（）

A. antiembolism stockings.
B. oxygen.
C. diuretics.
D. anticoagulants.