Tüm alıştırma soruları

Serving at an ambulatory care clinic, a physician evaluates a $62$-year-old woman who is establishing care. Her past medical history is significant for severe rheumatoid arthritis, which is currently managed with methotrexate and daily high-dose prednisone. She is a lifelong non-smoker and has no family history of malignancy. She reports experiencing menopause at age $51$ and currently has no vaginal bleeding, pelvic pain, or other acute symptoms. Her last colonoscopy $3$ years ago was normal. A screening mammogram and cervical cancer screening (Pap and HPV co-test) performed $10$ months ago were both negative. She is up to date on her inactivated vaccines, including the recombinant herpes zoster vaccine and the annual influenza vaccine. Based on current guidelines, which of the following is the most appropriate next step in preventive care for this patient?

A 68-year-old man presents to the emergency department with severe lower abdominal discomfort and an inability to pass urine for the past 14 hours. He reports a two-year history of progressive urinary hesitancy, nighttime awakenings to void, and a weak urinary stream. Vital signs are within normal limits. Physical examination reveals a visibly distended, exquisitely tender suprapubic mass. Arrange the following interventions in the most appropriate sequential order for the standard evaluation and management of this patient's condition, from immediate to definitive.

A 29-year-old woman is brought to the trauma center after being thrown from her motorcycle in a high-speed collision. The primary trauma survey reveals a patent airway, unlabored breathing, and intact circulation. Her vital signs are within normal limits. The secondary survey is notable for a severe right lower extremity injury. There is an obvious deformity of the midshaft tibia with a 14-cm full-thickness laceration. The underlying muscle is severely crushed, and exposed bone is stripped of its periosteum. The dorsalis pedis and posterior tibial pulses are palpable. Arrange the following steps in the most appropriate chronological sequence for the optimal management of this patient's limb injury.

Review the following patient profiles presenting for routine health maintenance. Which targeted preventive service or screening intervention is most appropriate for each patient? Match each patient profile with their corresponding guideline-concordant USPSTF Grade A or B recommendation.

A 35-year-old man presents to the outpatient psychiatric clinic for worsening irritability. During the session, he expresses intense anger towards his former business partner, stating, "He ruined my life. I bought a handgun yesterday, and I am going to shoot him at his house tonight." The patient then demands that the physician keep this information strictly confidential. Which of the following parties should the physician notify without the patient's explicit consent? (Select all that apply)

A $60$-year-old man comes to the office to discuss screening for Alzheimer disease. He recently read about a new plasma biomarker test that was approved for clinical use. The physician explains that this test was evaluated in a specialized memory disorders clinic where the prevalence of Alzheimer disease is $30\%$. In that setting, the test had a sensitivity of $95\%$ and a specificity of $90\%$. The physician is considering using this test for asymptomatic patients in the primary care setting, where the prevalence of Alzheimer disease is estimated to be $2\%$. Which of the following best describes the expected change in the test's positive predictive value (PPV) and negative predictive value (NPV) when applied in this general practice setting compared to the specialized clinic?

A $61$-year-old woman is evaluated in the cardiovascular intensive care unit for acute-onset shortness of breath and lightheadedness. She underwent an open surgical mitral valve replacement $4$ days ago. Her postoperative recovery had been unremarkable until $2$ hours ago. Temperature is $37.6^\circ\text{C}$ ($99.7^\circ\text{F}$), blood pressure is $82/64 \text{ mmHg}$, pulse is $122\text{/min}$, and respiratory rate is $24\text{/min}$. Pulse oximetry shows $94\%$ on room air. On examination, the patient appears anxious and diaphoretic. Jugular venous pulsations are visibly distended while she is sitting upright. The lungs are clear to auscultation bilaterally. Heart sounds are distant, and the point of maximal impulse is difficult to palpate. The surgical incision is clean, dry, and intact. Extremities are cool to the touch with delayed capillary refill. A portable chest radiograph reveals a globally enlarged cardiac silhouette without focal pulmonary infiltrates. Which of the following is the most appropriate next step in management?

A healthcare system is evaluating several proposed changes to its diagnostic pathways and screening protocols to optimize patient outcomes and resource utilization. Match each clinical scenario (proposed change) with the most accurate description of its direct statistical consequences on the test's performance characteristics.

A surgical triage team is evaluating four patients presenting to the emergency department with acute abdominal pain. Match each patient's clinical and radiologic presentation with the most appropriate next step in management.

A large tertiary care hospital is preparing to implement a novel barcoded medication administration (BCMA) workflow in its pediatric oncology unit. To proactively mitigate potential risks before the system goes live, the quality improvement committee initiates a Failure Mode and Effects Analysis (FMEA). Arrange the following steps of the FMEA in the correct chronological sequence from first to last.

A 62-year-old man with severe peripheral artery disease is advised to undergo urgent surgical revascularization for a threatened limb. He refuses the procedure, stating he wishes to be discharged immediately. The attending physician must evaluate his decision-making capacity before allowing him to leave against medical advice. Arrange the four standard components of a clinical capacity assessment in their generally accepted order of increasing cognitive complexity, starting with the most basic prerequisite (first) and ending with the most complex functional requirement (last).

A 68-year-old man with a history of severe peripheral arterial disease undergoes an elective endovascular revascularization procedure. During the intervention, a specialized hydrophilic guidewire shears off and a small fragment is retained within the femoral artery, requiring an emergency open arteriotomy for retrieval. The patient recovers without further ischemic complications. The hospital's risk management department is notified and mandates a formal Root Cause Analysis (RCA) to investigate the incident and prevent future occurrences.

Arrange the following steps of the Root Cause Analysis and systemic response in the correct chronological order, from the immediate post-incident action to the final systemic implementation.

Physicians at a tertiary care center are evaluating a novel immunoassay for diagnosing acute mesenteric ischemia. To determine the test's clinical utility, they apply it to a cohort of patients presenting with acute abdominal pain.

Among $120$ patients who are ultimately diagnosed with acute mesenteric ischemia via angiography, the immunoassay returns a positive result in $102$ cases. In another group of $400$ patients whose abdominal pain is confirmed to be non-ischemic in origin, the immunoassay is positive in $40$ cases.

Based on these findings, what is the positive likelihood ratio of this novel immunoassay?

A 29-year-old healthy female nurse presents to the occupational health clinic to establish care prior to beginning employment at a large metropolitan hospital. She immigrated to the United States from India at age 12 and received the Bacillus Calmette-Guérin (BCG) vaccine in infancy. She feels well and reports no cough, fever, night sweats, or weight loss. Her past medical history is unremarkable, and her physical examination is normal. Arrange the following clinical steps in the most appropriate sequential order for the preventive screening and management of tuberculosis in this patient.

A specialized obstetric clinic is evaluating a 32-year-old woman at 14 weeks of gestation. She recently relocated from a region with limited healthcare infrastructure and has no documented vaccination history. Medical records obtained from a previous hospitalization indicate she underwent a total surgical splenectomy eight years ago following blunt abdominal trauma. She reports feeling well and currently takes a daily prenatal vitamin. Vital signs are within normal limits, and the physical examination is unremarkable. Serologic testing demonstrates an absence of antibodies against hepatitis B surface antigen (anti-HBs), hepatitis B core antigen (anti-HBc), rubella, and varicella. Which of the following is the most appropriate immunization strategy for this patient during the current clinical encounter?

A 64-year-old man is admitted to the hospital for treatment of a deep vein thrombosis. During his stay, a nurse inadvertently administers a bolus of intravenous heparin at twice the intended dose due to a programming interface error on a newly implemented smart infusion pump. The patient subsequently develops mild epistaxis. His vital signs remain stable, and coagulation studies are immediately obtained to assess the extent of the over-anticoagulation.

Arrange the following steps in the most appropriate chronological sequence for managing and responding to this adverse event, starting with the most immediate action.

A clinical research committee is reviewing several proposed study protocols. For each proposed study design, select the most appropriate statistical method for primary data analysis.

Match each clinical scenario regarding patient information to the most appropriate ethical or legal principle governing confidentiality.

Emergency medical services transport a 42-year-old woman to the hospital following a large episode of hematemesis at home. She is subsequently diagnosed with a bleeding gastric ulcer. Her blood pressure is 85/50 mm Hg, and her heart rate is 120/min. She is fully alert, oriented, and able to communicate her wishes clearly. The attending physician explains that she urgently needs a blood transfusion, without which she will likely suffer fatal consequences. The patient demonstrates a clear understanding of her clinical condition and the severe risks of refusing treatment. However, she states that she is a Jehovah's Witness and adamantly refuses the transfusion, though she consents to receiving intravenous crystalloid fluids and undergoing an upper endoscopy to control the bleeding. Her husband, who is legally designated as her healthcare proxy, is at the bedside and demands that the physician administer the blood to save his wife's life. Which of the following is the most appropriate next step in management?

A $32$-year-old man is brought to the emergency department $20\text{ minutes}$ after sustaining a gunshot wound to the right groin. On arrival, he is confused and diaphoretic. His temperature is $36.5^\circ\text{C}$ ($97.7^\circ\text{F}$), blood pressure is $76/40\text{ mmHg}$, heart rate is $138/\text{min}$, and respiratory rate is $22/\text{min}$. Physical examination reveals a single penetrating wound just below the right inguinal ligament. There is a rapidly expanding, pulsatile hematoma measuring approximately $12\text{ cm}$ in diameter in the right groin. Active, bright red blood is oozing from the wound. The right foot is pale and cold to the touch, and the right dorsalis pedis and posterior tibial pulses are not palpable by Doppler ultrasound. Two large-bore intravenous lines are established, and a massive transfusion protocol is initiated. Which of the following is the most appropriate immediate next step in management?