You are palpating the apical impulse in a patient with heart disease and find that the amplitude is diffuse and increased. Which of the following conditions could be a potential cause of an increase in the amplitude of the impulse?

Correct Answer: D

Rationale: The correct answer is D, cardiomyopathy. Cardiomyopathy is a disease of the heart muscle that can lead to an increase in the size and strength of the heart muscle, resulting in an increased amplitude of the apical impulse. This is due to the heart working harder to pump blood effectively. Hypothyroidism (choice A) typically does not cause an increase in the amplitude of the apical impulse. Aortic stenosis (choice B) and mitral stenosis (choice C) both result in pressure or volume overload on specific chambers of the heart, but they do not directly lead to diffuse and increased amplitude of the apical impulse like cardiomyopathy does. In summary, an increase in the amplitude of the apical impulse is more likely to be caused by cardiomyopathy due to the increased workload on the heart muscle, compared to the other conditions provided in the choices.

Correct Answer: C

Rationale: The correct answer is C because Certified Nursing Assistants (CNAs) typically provide the majority of direct patient care in nursing homes. CNAs assist with activities of daily living, monitoring patients' health, and providing emotional support. This is true in most nursing homes as they play a crucial role in patient care. Rationale: - A: Most nurses in nursing homes are not necessarily Registered Nurses (RNs), as there are also Licensed Practical Nurses (LPNs) and Certified Nursing Assistants (CNAs) who provide care. - B: LPNs or LVNs may assist with the patient care plan under the supervision of an RN, but they do not typically develop the plan themselves. - D: Staff turnover is a major issue in nursing homes due to various factors such as workload, stress, and burnout among healthcare workers.

Correct Answer: A

Rationale: The correct answer is A: Fingertips. Fingertips are the most sensitive part of the hand, allowing for accurate temperature assessment. They provide better tactile discrimination and are more sensitive to changes in temperature compared to other parts of the hand. Palms have thicker skin and are less sensitive, making them less ideal for temperature assessment. Backs of fingers and ulnar aspect of the hand are also less sensitive than fingertips and lack the precision needed for accurate temperature detection.

Correct Answer: C

Rationale: The correct answer is C because clinical diagnosis of anxiety or depression can indeed have an effect on frailty rates. Anxiety and depression can contribute to the development and progression of frailty through various mechanisms such as decreased physical activity, poor nutrition, and social isolation. This can lead to a higher risk of frailty in individuals with mental health issues. Choices A, B, and D are incorrect because both prominent frailty models (e.g., Fried's phenotype model and Rockwood's accumulation of deficits model) do consider age as a component for defining frailty, individuals who are prefrail are at a higher risk of progressing to frailty rather than becoming robust, and frailty diagnosis has been shown to be valuable in preoperative assessment as it helps identify patients who may not do well with surgical interventions.

Correct Answer: C

Rationale: The correct answer is C because cultural humility emphasizes recognizing power imbalances and fostering interpersonal sensitivity through partnerships with and learning from patients. This approach encourages self-awareness, openness, and willingness to engage in respectful dialogues. Option A is incorrect because cultural humility is not solely achieved through professional development courses. Option B is incorrect as anyone, regardless of their background, can practice cultural humility. Option D is incorrect as cultural humility does consider the impacts of structural factors on health disparities, including biological, socioeconomic, and racial influences.

Correct Answer: A

Rationale: The correct answer is A: Acute orchitis. Orchitis is inflammation of the testicle that can cause testicular enlargement and tenderness. In this case, the teenager presents with a swollen and sore left testicle, which aligns with the symptoms of orchitis. The patient's history of upper respiratory symptoms suggests a viral infection, which can lead to orchitis. The normal prostate exam and urine analysis rule out prostatitis. Acute epididymitis typically presents with pain and swelling in the epididymis, not the testicle itself. Torsion of the spermatic cord would present with sudden, severe testicular pain and is an emergency requiring immediate surgical intervention.

Correct Answer: B

Rationale: The correct answer is B: It was the first device to produce X-rays. The Crookes tube, invented by William Crookes, was crucial in the development of modern imaging technologies because it was the first device to produce X-rays. X-rays revolutionized medical diagnostics and imaging, leading to significant advancements in healthcare. Choices A, C, and D are incorrect because the primary significance of the Crookes tube was its role in producing X-rays, not demonstrating electromagnetic radiation principles, paving the way for the electron microscope, or advancements in nuclear medicine.

Correct Answer: D

Rationale: The correct answer is D: Obtain an ultrasound of the liver. This is the most appropriate next step to assess the patient's enlarged liver in the context of COPD. Ultrasound can provide detailed images of the liver to identify potential causes of enlargement, such as fatty liver disease or liver cirrhosis. Percussing the lower border (Choice A) or measuring the span of the liver (Choice B) may provide some information but are less specific and may not identify the underlying cause. Ordering a hepatitis panel (Choice C) would focus only on viral hepatitis as a potential cause, while an ultrasound can provide a broader evaluation of liver structure and function.

Correct Answer: A

Rationale: The correct answer is A: Provide positive pressure ventilation with supplemental oxygen. This is the most appropriate action as the patient is cyanotic, responsive to painful stimuli, and exhibiting stridorous respirations, indicating potential airway compromise. Providing positive pressure ventilation with supplemental oxygen can help improve oxygenation and support the patient's breathing. Summary of other choices: B: Obtaining vital signs is important, but in this urgent situation, addressing the airway and breathing takes precedence. C: Contacting medical direction may delay essential treatment. Immediate intervention is crucial in this scenario. D: Applying a pulse oximeter can provide valuable information, but administering oxygen and ensuring adequate ventilation should be the priority in a patient with compromised breathing.