which of the following is true concerning rheumatic fever?

Correct Answer: D

Rationale: Rheumatic fever is an inflammatory disease that can develop as a complication of inadequately treated streptococcal infections, especially streptococcal throat infections caused by group A streptococcus bacteria. The bacteria trigger an abnormal immune response in susceptible individuals, leading to the development of rheumatic fever. The other choices are not accurate. Glomerulonephritis is a separate condition associated with certain types of streptococcal infections but not with rheumatic fever. Symptoms of rheumatic fever can persist even after the fever has subsided, and it is important for children with rheumatic fever to follow proper treatment and rest guidelines as advised by healthcare providers. It is crucial for individuals with rheumatic fever to avoid activities that could strain the heart until the condition has been properly managed.

Correct Answer: D

Rationale: The formation of the human embryo is completed by 8 weeks, not 6 weeks.

Correct Answer: B

Rationale: There is a well-established positive correlation between type 2 diabetes mellitus and obesity. Obesity is a major risk factor for developing type 2 diabetes due to excess body fat leading to increased insulin resistance. As fat accumulates in the body, especially around the abdomen, the cells become less responsive to insulin, causing blood sugar levels to rise. This can ultimately lead to the development of type 2 diabetes. Managing obesity through lifestyle modifications such as healthy eating and regular exercise is crucial in preventing and managing type 2 diabetes.

Correct Answer: C

Rationale: Petechiae are small, pinpoint, red or purple spots on the skin caused by bleeding into the skin. In dark-skinned individuals, it can be challenging to visualize petechiae due to the pigmentation of the skin. However, one of the best places to observe for the presence of petechiae in dark-skinned individuals is the oral mucosa, specifically the inner lining of the mouth. The oral mucosa is usually lighter in color compared to the skin, making it easier to identify petechiae in this area. Palms and soles may also be a good place to observe for petechiae, but the oral mucosa is typically the preferred site for examination in dark-skinned individuals.

Correct Answer: B

Rationale: Option B, "I don't have to worry if I get a strep throat," shows that the client does not understand the cause of exacerbation of systemic lupus erythematosus (SLE). Strep throat can trigger SLE exacerbations as infections are known to worsen autoimmune diseases like lupus. This statement indicates a lack of awareness regarding the potential impact of infections on SLE symptoms. Option A and C show a better understanding as they address the importance of diet and stress management, which are significant factors that can influence the course of SLE.