Adult Health Nursing Answer Key

Correct Answer: B

Rationale: The presence of risk factors indicates an increased likelihood or susceptibility to developing a particular disease. While risk modification and healthy lifestyle choices can help reduce the risk, having these risk factors still increases the overall chances of getting the disease compared to individuals without the same risk factors. It is essential for individuals with risk factors to be proactive in managing their health to mitigate the increased risk.

Correct Answer: B

Rationale: Major histocompatibility complex (MHC) class I molecules are responsible for presenting endogenous antigens, such as viral or intracellular proteins, to CD8+ T cells. These antigens are derived from within the cell, either synthesized within the cell itself or taken up from the cytoplasm. CD8+ T cells, also known as cytotoxic T cells, recognize antigens presented by MHC class I molecules and play a key role in cell-mediated immunity by destroying infected or abnormal cells.

Correct Answer: C

Rationale: The core public health function of assessment involves systematic data collection on the population's health status, monitoring changes in health, and making information available to the public. In this context, collecting data and monitoring the health status of the population directly aligns with the assessment function of public health. Quality assurance focuses on ensuring that health services meet established standards, policy development involves creating policies to address public health issues, and health promotion involves empowering individuals to improve their health. While these functions are also essential in public health, the act of collecting data and monitoring health status specifically falls under the assessment core function.

Correct Answer: B

Rationale: The stomach is responsible for producing hydrochloric acid and intrinsic factor. Hydrochloric acid helps in the breakdown of proteins during digestion, while intrinsic factor aids in the absorption of vitamin B12 in the small intestine. These two components are crucial for the proper functioning of the digestive system, particularly in breaking down food and absorbing essential nutrients. The liver is involved in bile production, the pancreas in the production of digestive enzymes, and the small intestine in nutrient absorption, but the specific functions related to hydrochloric acid and intrinsic factor are primarily attributed to the stomach.

Correct Answer: A

Rationale: The patient's presentation with grouped vesicles on an erythematous base affecting the lips and perioral region, triggered by sunlight exposure and stress, is classic for herpes simplex labialis, commonly known as cold sores. Herpes simplex virus type 1 (HSV-1) is responsible for cold sores and is highly contagious. Recurrent episodes can be triggered by factors like UV exposure, stress, illness, and hormonal changes. Symptoms typically start with tingling or burning sensations before progressing to grouped vesicles that rupture, forming crusts. Treatment may involve antiviral medications to reduce the severity and duration of symptoms. Perioral dermatitis typically presents with papules and pustules around the mouth, while angular cheilitis involves fissures and inflammation at the corners of the mouth. Allergic contact dermatitis would present with erythema, pruritus, and possibly vesicles in