You are working in a college health clinic and seeing a young woman with a red, painful, swollen DIP joint on the left index finger. There are also a few papules, pustules, and vesicles on reddened bases, located on the distal extremities. This would be consistent with which of the following?

Correct Answer: D

Rationale: The description provided indicates a presentation consistent with gonococcal arthritis. Gonococcal arthritis is an infectious arthritis caused by the bacteria Neisseria gonorrhoeae. Symptoms typically include red, swollen, and painful joints, especially affecting the distal joints of the limbs. The presence of papules, pustules, and vesicles on reddened bases at the distal extremities is characteristic of disseminated gonococcal infection. In women, the DIP joint involvement in the finger can be indicative of this condition. Prompt diagnosis and treatment with antibiotics are essential to prevent complications associated with gonococcal arthritis. It is important to consider a sexually transmitted infection like gonorrhea in young patients presenting with joint symptoms and cutaneous findings.

Correct Answer: C

Rationale: In diabetic ketoacidosis (DKA), the body is in a state of metabolic acidosis due to the accumulation of ketones in the blood. One of the compensatory mechanisms to decrease the acidity in the body is increased breathing, known as Kussmaul breathing. This type of breathing is characterized by a rapid and deep pattern to blow off excess carbon dioxide and decrease the acidity of the blood. Therefore, in a patient with DKA, you would expect to observe rapid and deep breathing.

Correct Answer: B

Rationale: The description of dark tan patches with a reddish cast that have sharp borders and fine scales, especially more prominent on the upper back, chest, neck, and upper arms, is classic for tinea versicolor. Tinea versicolor is a superficial fungal infection caused by Malassezia species, which commonly affects individuals who sweat more, such as those working outdoors like the construction worker in this case. The rash is often pruritic (itchy) and can vary in color from tan to pink or red. The fine scales on the patches are a result of the accumulation of the yeast in the affected areas.

Correct Answer: B

Rationale: Leaning forward in the upright position increases venous return and systemic vascular resistance, which can help accentuate the intensity of aortic regurgitation murmur. This position helps to bring the heart closer to the chest wall, making the murmur easier to auscultate and potentially increasing its intensity.

Correct Answer: C

Rationale: Mrs. R. is exhibiting characteristics of a silent patient because she does not respond or engage in conversation when directly asked a question by the healthcare provider. In this case, Mrs. R.'s lack of verbal response could be due to various reasons such as shyness, anxiety, cognitive impairment, or communication barriers. It is important for healthcare providers to recognize and adapt to different communication styles and preferences of patients to ensure effective patient-provider interaction and care. In situations like these, it may be helpful to provide alternative communication methods or allow more time for the patient to respond comfortably.

Correct Answer: C

Rationale: The right ventricle is the only chamber of the heart that can be assessed by palpation during a cardiac examination. The right ventricle is located close to the sternum on the anterior chest wall, making it accessible for palpation. By palpating the area near the lower left sternal border, just beside the sternum, a healthcare provider can assess the size and function of the right ventricle. It is important to note that the other chambers of the heart (left atrium and right atrium) are not typically assessed by palpation due to their deeper location within the chest cavity. The sinus node, which is responsible for generating the heart's electrical impulses, is also not directly palpable during a cardiac examination.

Correct Answer: C

Rationale: Venous insufficiency is the most likely etiology for the painful ulcerative lesion near the medial malleolus with accompanying hyperpigmentation. Venous insufficiency can lead to the development of venous stasis ulcers, which typically occur on the lower extremities, especially around the ankle area. These ulcers are often painful and associated with swelling, hyperpigmentation, and a weeping or moist wound bed. The location of the ulcer near the medial malleolus is also characteristic of venous insufficiency-related ulcers. Arterial insufficiency would typically present with different clinical findings, such as a pale, cool extremity, decreased pulses, and hair loss. Neuropathic ulcers are usually painless due to the loss of sensation, and trauma would have a different appearance than the described findings.

Correct Answer: C

Rationale: The young woman in this scenario is experiencing symptoms consistent with post-traumatic stress disorder (PTSD). PTSD is an anxiety disorder that can develop after a person is exposed to a traumatic event, such as a life-threatening situation like a robbery with a gun involved. The symptoms she is experiencing, including difficulty sleeping, severe nightmares, irritability, hypervigilance, and avoidance of triggers such as driving at night, are all classic features of PTSD. These symptoms have persisted for at least 6 months since the traumatic event occurred, which is a key criterion for making a diagnosis of PTSD. Treatment for PTSD typically involves a combination of medication and therapy to help the individual process and cope with the traumatic experience.

Correct Answer: C

Rationale: By connecting the patient's presenting symptoms (wheezing when exposed to cats) and family history of asthma, you have identified asthma as the most likely diagnosis for the 5-year-old girl. This initial conclusion, based on the available information, is known as a working diagnosis. Further evaluation and testing may be required to confirm the diagnosis, but at this stage, you have established a preliminary understanding of the likely condition affecting the patient.