Correct Answer: A

Rationale: Endometriosis is a condition characterized by the abnormal growth of endometrial tissue outside the uterus. One common symptom of endometriosis is excessive menstrual bleeding, known as menorrhagia. This excessive bleeding is due to the presence of endometrial tissue in abnormal locations, leading to inflammation, scarring, and blood accumulation. In severe cases, endometriosis can lead to the formation of adhesions, cysts, and scar tissue, causing significant pain and fertility issues for affected individuals. Endometrial hyperplasia, leiomyomas (uterine fibroids), and adenomyosis are other gynecological conditions, but they do not involve the abnormal proliferation of endometrial tissue outside the uterus like endometriosis does.

Correct Answer: C

Rationale: Pericarditis is the inflammation of the pericardium, the sac surrounding the heart. Patients with pericarditis typically present with sharp chest pain that worsens with deep breathing, changes in body position, and coughing. The pain tends to improve when the patient leans forward. This characteristic symptom of pericarditis is known as "pleuritic" chest pain. In contrast, stable angina presents as predictable chest pain that occurs with exertion and is relieved by rest or medications. Unstable angina is characterized by chest pain that occurs at rest or with minimal exertion and is considered a medical emergency. Myocarditis involves inflammation of the heart muscle and may present with symptoms such as chest pain, but it does not typically have the characteristic of worsening with deep breathing or changes in body position.

Correct Answer: A

Rationale: Qualitative research data are typically in text form rather than numeric or statistical data. This means that the data collected through qualitative research methods are descriptive and usually presented in the form of words, phrases, or narratives. Qualitative data often involve subjective interpretations, opinions, and in-depth insights, making text a more suitable format for capturing these nuances compared to numerical or quantitative data. The focus in qualitative research is on understanding experiences, meanings, and perspectives, which are best conveyed through textual data.

Correct Answer: C

Rationale: The symptoms described are classic for amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord, leading to muscle weakness and atrophy. Patients typically present with weakness, muscle atrophy, fasciculations (muscle twitching), and eventually develop difficulty swallowing and breathing due to involvement of the muscles responsible for these functions. Parkinson's disease (Choice A) is a neurodegenerative disorder characterized by tremors, rigidity, and bradykinesia but does not typically present with muscle atrophy or fasciculations as described in the case. Guillain-Barré syndrome (GBS) (Choice B) is an acute inflammatory condition affecting peripheral nerves, leading to ascending paralysis, which is usually reversible. Myasthenia gravis (Choice D) is an autoimmune disorder that affects neu

Correct Answer: C

Rationale: The clinical presentation described with fever, headache, maculopapular rash starting on the face and spreading to the trunk and extremities, along with leukopenia and thrombocytopenia suggests a likely diagnosis of Rocky Mountain spotted fever (RMSF), which is caused by the bacterium Rickettsia rickettsii.