A nurse is reviewing the laboratory results of a client and finds both their iron and vitamin B12 levels are below the expected reference range. The nurse should monitor the client for which of the following conditions?

A. Facial erythema is not a primary diagnostic feature of this specific respiratory bacterial infection. While intense coughing fits may cause temporary facial flushing or venous congestion, it is not a hallmark finding. Conditions like fifth disease or slapped-cheek syndrome are more likely to present with persistent malar rashes. This sign lacks the specificity required for a pertussis diagnosis.

B. Peeling of the skin on the extremities, known as desquamation, is classically associated with Kawasaki disease or scarlet fever. Bordetella pertussis does not typically produce the exotoxin profile necessary to cause significant integumentary shedding or widespread dermatological involvement. The pathology of pertussis is primarily localized to the ciliated epithelium of the respiratory tract. It is not an exfoliative disease.

C. In the catarrhal phase of the infection, a low-grade temperature is a standard clinical finding as the immune system responds to the initial bacterial colonization. The presence of systemic inflammation results in mild pyrexia alongside coryza. This manifestation is most prominent before the onset of the characteristic paroxysmal cough. Fever helps differentiate early pertussis from non-inflammatory conditions.

D. A beefy, red tongue, often described as a strawberry tongue, is a classic sign of scarlet fever or toxic shock syndrome. This manifestation occurs due to capillary permeability and inflammation of the lingual papillae caused by Streptococcus pyogenes. Pertussis involves the respiratory mucosa rather than the oral structures or the tongue. This symptom indicates a different bacterial or inflammatory etiology.

A) "The client should use a hair dryer on a warm setting to relieve itching inside the cast.": Using a hair dryer on a warm setting to relieve itching inside the cast is not recommended because it could potentially lead to burns or skin irritation. The client should avoid inserting objects inside the cast to scratch, as this could damage the skin or cause an infection.


B) "The client can shower with the cast after 24 hr.": A plaster cast is not waterproof, and the client should avoid getting it wet. Although the cast may feel dry on the outside after 24 hours, it typically takes about 48 hours or longer for a plaster cast to fully dry and harden. Showering with a plaster cast is not safe, as moisture could cause skin irritation or lead to the development of sores or infection.

C) "The client’s extremity should be elevated after the cast is applied.": Elevating the extremity after a cast is applied is a key teaching point to help reduce swelling and improve circulation. This is especially important during the first 24 to 48 hours after cast application. Elevation helps to prevent or manage swelling, which can be a common complication after an injury and cast application.

D) "The client should keep the cast covered until it is dry.": While it is important to keep a cast clean and dry during the drying process, the cast should not be covered with plastic or other materials that could trap moisture. The cast needs air circulation to dry properly, and covering it could lead to the cast becoming too moist, increasing the risk of skin issues or infection.