A nurse is assessing a client prior to administering the influenza vaccine. The nurse should assess if the client has an allergy to which of the following foods?

Rationale:

A. Place the oxygen tank away from curtains or drapes: Oxygen supports combustion, so tanks must be kept away from flammable materials such as curtains or drapes. This placement reduces fire risk and ensures safe home oxygen use.

B. Store the oxygen tank wrench in a locked cabinet: The tank wrench should remain attached to or easily accessible near the tank for emergency shut-off. Locking it away could delay quick responses during equipment malfunction or fire hazards.

C. Ensure that the client checks the gauge weekly: Oxygen tank levels should be checked daily to prevent running out unexpectedly. Waiting a week between checks increases the risk of the tank depleting before a refill is arranged.

D. Have the client store smaller tanks under his bed: Storing tanks under the bed poses a fire hazard due to limited ventilation and proximity to bedding. Oxygen tanks should be stored upright in a secure, well-ventilated area away from heat sources.

Rationale for Correct Choices:

• Endometritis: Endometritis is a common postpartum infection of the uterine lining, often following cesarean birth, especially with risk factors like prolonged rupture of membranes and anemia. Clinical features include uterine tenderness, foul-smelling lochia, and fever, all of which are present in this case.
• Uterus and lochia assessment: A uterus that is tender and slightly elevated, with moderate dark brown, malodorous lochia, is a hallmark of endometritis. The boggy fundus that firms with massage also suggests poor involution, frequently associated with infection.

Rationale for Incorrect Choices:

• Mastitis: While the client reports breast discomfort, mastitis typically presents with unilateral breast pain, localized redness, and flu-like symptoms. The findings here are more consistent with engorgement than with infectious mastitis.
• Pneumonia: The client has no respiratory distress, productive cough, or abnormal lung sounds (only slightly diminished bases), and oxygen saturation is normal. These signs are insufficient to support pneumonia.
• Fever: Although fever is present (38.2°C), it is a nonspecific symptom that could occur with any postpartum infection or inflammation. It supports infection but does not localize the source as definitively as the uterine and lochia findings.
• WBC count: The elevated WBC count (33,000/mm³) indicates infection or inflammation, but again, it is nonspecific. It supports the diagnosis but does not point solely to endometritis without clinical context from the uterus and lochia.