Adult Health Nursing Study Guide Answers

Correct Answer: C

Rationale: Ménière's disease is characterized by the triad of symptoms including progressive sensorineural hearing loss, tinnitus, and vertigo. The audiometric testing in Ménière's disease often shows a "carrot-shaped" configuration, which refers to low-frequency hearing loss initially and eventually spreading to involve higher frequencies. This distinctive pattern of hearing loss helps differentiate Ménière's disease from other causes like Presbycusis (age-related hearing loss) or Noise-induced hearing loss. Acoustic neuroma can present with unilateral sensorineural hearing loss but typically does not exhibit the specific "carrot-shaped" configuration seen in Ménière's disease.

Correct Answer: D

Rationale: Bronze baby syndrome is the term used to describe the transient discoloration of a baby's skin while undergoing phototherapy treatment for jaundice. This phenomenon typically occurs in preterm infants and is believed to be caused by the breakdown of bilirubin into colored pigments during phototherapy. The discoloration can range from a bronze or brownish color to a grayish-green hue. One key characteristic of bronze baby syndrome is that the discoloration is reversible once phototherapy is complete and does not indicate any underlying health concerns. It is important for healthcare providers to be aware of this phenomenon to avoid unnecessary interventions or alarm to the caregivers.

Correct Answer: A

Rationale: By randomly selecting individuals in the community for the project, Nurse Mary is upholding the ethical principle of autonomy. Autonomy refers to respecting individuals' right to make their own decisions and choices. In this scenario, Nurse Mary is not imposing her own preferences or biases but rather allowing individuals in the community to have an equal opportunity to participate in the project. Random selection ensures that the process is fair and gives everyone an equal chance to be involved, respecting their autonomy.

Correct Answer: C

Rationale: Uterine rupture is a severe obstetric complication that requires prompt and decisive management to prevent adverse outcomes for both the mother and the baby. In cases of uterine rupture leading to fetal distress and maternal hemorrhage, performing an emergency cesarean section is crucial. This intervention allows for rapid delivery of the baby, relieving the distress on the fetus and enabling immediate access to manage the maternal hemorrhage. By performing a timely cesarean section, healthcare providers can expedite the delivery process and effectively address both the fetal and maternal complications associated with uterine rupture. This intervention is essential in saving lives and reducing the risk of further complications in such a critical obstetric emergency.

Correct Answer: A

Rationale: Natural killer (NK) cells play a vital role in the innate immune response by identifying and eliminating virus-infected cells, as well as tumor cells, without the need for prior exposure or activation. NK cells are able to detect abnormal cells by recognizing changes in the cell surface molecules, such as downregulation of MHC class I molecules. Once activated, NK cells release cytotoxic granules containing perforin and granzyme, leading to the destruction of the target cell. This direct killing mechanism is crucial for controlling viral infections and preventing the development of tumors. NK cells do not produce antibodies (option B), present antigens to T cells (option C), or release cytokines to recruit other immune cells (option D) as their primary function in the immune response.