All practice questions

A 19-year-old woman is evaluated in the university health clinic for dysuria and vaginal discharge. She is diagnosed with *Neisseria gonorrhoeae* cervicitis, treated appropriately, and discharged. The patient explicitly asks the physician not to tell her parents about the visit. Two days later, the patient's mother calls the clinic. She states that she is the primary policyholder for her daughter's health insurance and demands to know the results of the recent laboratory tests. Which of the following is the most appropriate response by the physician?

An academic medical center evaluates a new electronic health record (EHR) alert designed to reduce inappropriate broad-spectrum antibiotic prescriptions for uncomplicated acute bronchitis. The researchers conduct a prospective, randomized controlled trial by randomizing $N = 40$ outpatient physicians to either the EHR alert group or the standard workflow group. Over six months, the data show that physicians in the intervention group had an 18% greater reduction in broad-spectrum antibiotic prescriptions compared to the control group. Statistical analysis yields a $p$-value of 0.11 and a 95% confidence interval of -38% to +2%. The researchers conclude that the EHR alert does not significantly reduce prescription rates. Which of the following best explains why the study failed to demonstrate statistical significance despite a potentially meaningful clinical difference?

Match each acute cardiothoracic or vascular surgical presentation with the most appropriate immediate next step in management.

A $32$-year-old woman, gravida $2$, para $1$, at $18$ weeks gestation presents to the clinic after noticing a new mass in her right breast $2$ weeks ago. She reports no breast pain, skin changes, or nipple discharge. She has no personal or family history of breast cancer. Vital signs are within normal limits. Physical examination reveals a $3$-cm, firm, non-tender, and relatively fixed mass in the upper outer quadrant of the right breast. There is no overlying erythema, warmth, or peau d'orange. Palpation of the right axilla reveals a firm, mobile $1.5$-cm lymph node. The left breast and axilla are normal. Which of the following is the most appropriate next step in the evaluation of this patient's breast mass?

Match each clinical presentation to the most likely pediatric orthopedic diagnosis.

A 28-year-old male is brought to the emergency department after a severe crush injury to his pelvis at a construction site. He is hemodynamically stable. Physical examination reveals a pelvic binder in place, blood at the urethral meatus, and a high-riding prostate on digital rectal examination. A FAST exam is negative. He has a palpable, distended bladder and reports a strong urge to urinate. Arrange the following diagnostic and therapeutic steps in the most appropriate chronological order for the urologic management of this patient.

An emergency medical services team brings a $68$-year-old male to the trauma bay following an episode of syncope at home. His wife reports that he complained of sudden, excruciating pain in his left flank and lower abdomen just before collapsing. His past medical history is significant for chronic obstructive pulmonary disease, hypertension, and a $45$-pack-year smoking habit. On arrival, he is lethargic, pale, and diaphoretic. Vital signs include a temperature of $36.8^\circ\text{C}$ ($98.2^\circ\text{F}$), blood pressure of $72/45\text{ mm Hg}$, heart rate of $128/\text{min}$, and respiratory rate of $26/\text{min}$. Palpation of the abdomen reveals significant distention and a tender, pulsatile mass just above the umbilicus. A point-of-care ultrasound performed immediately demonstrates a $6.8\text{ cm}$ infrarenal aortic dilation with surrounding retroperitoneal free fluid. Which of the following is the most appropriate next step in management?

A $12$-month-old boy is brought to the clinic for a routine well-child examination. He was diagnosed with perinatal human immunodeficiency virus (HIV) infection and is currently receiving antiretroviral therapy. His mother reports he has had a mild cough and rhinorrhea for the past $2$ days. On physical examination, his temperature is $37.8^\circ\text{C}$ ($100.0^\circ\text{F}$), pulse is $120/\text{min}$, and respirations are $32/\text{min}$. Lung auscultation reveals diffuse bilateral wheezing and mild crackles without increased work of breathing. When asked about his behavior, the mother is concerned because he only specifically says 'mama' and 'dada' and stands alone but cannot walk independently. Recent laboratory results show a CD4+ T-cell percentage of $12\%$. His immunizations are up to date through the $6$-month schedule. Which of the following is the most appropriate next step in management for this patient?

Occupational medicine requires identifying specific toxic environmental exposures based on their unique pathophysiological manifestations. Match each occupational or environmental exposure with its most characteristic clinical, laboratory, or imaging finding.

A 55-year-old man is admitted to the medical intensive care unit with severe sepsis. He is prescribed a continuous intravenous infusion of norepinephrine. The concentration of the norepinephrine infusion prepared by the pharmacy is 16 mg in 250 mL of normal saline. A new nurse on the unit mistakenly programs the smart infusion pump with the weight-based dosing parameters for a different vasoactive medication, leading to the patient receiving a significantly higher dose of norepinephrine than intended. The patient develops transient severe hypertension and myocardial ischemia but eventually stabilizes. A root cause analysis reveals that the smart pump interface requires manual entry of medication concentrations and lacks alerts for doses that exceed standard maximum limits. Which of the following interventions is the most effective strategy to prevent similar errors in the future?

An overarching health network recently integrated its electronic outpatient and inpatient records. A 64-year-old man undergoes a successful total knee arthroplasty. Four weeks postoperatively, he presents to the emergency department with a massive gastrointestinal hemorrhage. His admission hemoglobin is 5.2 g/dL. Chart review demonstrates that a pre-surgical basic metabolic panel and complete blood count had flagged a hemoglobin of 9.4 g/dL and a mean corpuscular volume of 72 fL. The orthopedic team noted the anemia in the preoperative history and physical but attributed it to "anemia of chronic disease" from osteoarthritis, proceeding with surgery without further evaluation. The patient had not seen a primary care physician in five years. To systematically mitigate the risk of abnormal, non-orthopedic laboratory values being overlooked or misattributed in the perioperative setting, leadership decides to apply human factors engineering principles. Which of the following represents the most reliable, highest-leverage system intervention?

A 16-year-old girl, G1P0, at 38 weeks gestation is brought to the labor and delivery unit by her parents after the spontaneous rupture of membranes. She is in active labor. Fetal heart rate monitoring reveals recurrent late decelerations with absent variability. The physician determines that the fetus is in severe distress and strongly recommends an emergency cesarean delivery to prevent fetal demise or severe neurologic injury. The patient, who is fully awake and alert, tearfully refuses the surgery. She states, "I read online that surgeries leave terrible scars and cause infections. I want to have a natural birth no matter what. I know the baby might not survive, but I cannot let you cut me open." The physician assesses her and determines she clearly understands the risks, benefits, and alternatives to the proposed intervention. Her parents, who are present at the bedside, angrily demand that the physician perform the cesarean delivery immediately. They state, "She is just a child and does not understand what she is doing! We are her parents, and we authorize this surgery to save our grandchild." Which of the following is the most appropriate next step in management?

A 29-year-old woman, gravida 2, para 1, at 40 weeks gestation is admitted to the labor and delivery unit in active labor. Continuous fetal heart rate monitoring demonstrates recurrent late decelerations with absent beat-to-beat variability, and a biophysical profile suggests severe fetal acidemia. The obstetrician informs the patient that the fetus is in imminent distress and strongly recommends an emergency cesarean delivery to prevent fetal demise or severe hypoxic-ischemic encephalopathy. The patient is fully alert, oriented to person, place, and time, and demonstrates a clear understanding that refusing the surgery will likely result in fetal death. However, she adamantly refuses the cesarean delivery, stating, "I had a traumatic experience with my previous abdominal surgery, and I will only deliver this baby vaginally, regardless of the outcome." The patient's husband, who is at the bedside, is extremely distraught and begs the physician to perform the surgery immediately to save their baby's life. Which of the following is the most appropriate next step in management?

A 31-year-old woman, who is pregnant with her second child at 34 weeks gestation, is brought to the emergency department following a high-speed motor vehicle collision. She exhibits clinical signs of abruptio placentae and severe hemorrhagic shock. The surgical team determines that immediate laparotomy and blood product administration are required to prevent maternal and fetal death. The patient is awake, fully alert, and demonstrates clear decision-making capacity. She states that her religious beliefs strictly prohibit the acceptance of blood products or surgical interventions, and she explicitly declines the proposed treatments. She expresses understanding that this decision will likely result in the death of both herself and the fetus. Which of the following statements regarding the management of this patient are accurate? (Select all that apply)

A healthcare network's Quality and Patient Safety Committee is conducting a retrospective analysis of several recent clinical incidents to identify systemic vulnerabilities and human factors. To properly direct their Root Cause Analysis (RCA) and continuous quality improvement efforts, the committee must correctly categorize the nature of each event. Match each of the following specific clinical scenarios to the most accurate patient safety taxonomy classification.

An unresponsive 34-year-old pregnant patient at 35 weeks gestation (G3P2) is transported to the emergency department via helicopter following a catastrophic motor vehicle collision. She has sustained severe blunt abdominal trauma resulting in a suspected placental abruption and profound hemorrhagic shock. Vital signs show a blood pressure of 70/40 mm Hg and a heart rate of 145/min. She is intubated, heavily sedated, and completely lacks decision-making capacity. Her husband, who is her legally designated healthcare proxy, arrives shortly after.

A review of her electronic medical record reveals a legally binding advance directive signed one year ago and explicitly reaffirmed during her first prenatal visit for the current pregnancy. The document unequivocally refuses all blood product transfusions under any circumstances due to religious convictions. The trauma and obstetric teams determine that an emergent laparotomy and cesarean delivery are immediately necessary to save both her life and the viable fetus. However, the surgeons inform the husband that the patient will almost certainly not survive the operations without a massive blood transfusion.

Visibly distraught, the husband states, 'I know what her document says, but please give her the blood. She is everything to me, and we cannot lose this baby. As her medical power of attorney, I give you my full permission to transfuse her.'

Which of the following statements regarding the ethical and legal management of this patient are accurate? (Select all that apply)

A 15-year-old female presents to an outpatient clinic unaccompanied by a parent or guardian. She requests a general health check-up and asks the physician about receiving several specific medical services. She explicitly states that she does not want her parents to know about her visit or any treatments she receives today. The patient is a high school student, lives at home with her parents, and is completely financially dependent on them. According to generally accepted legal and ethical standards in most US jurisdictions, to which of the following services may this unemancipated minor legally provide her own consent without the physician notifying or obtaining permission from her parents? (Select all that apply)

A 27-year-old woman, gravida 1, para 0, at 32 weeks gestation is admitted to the hospital in preterm labor. Her obstetrician recommends the administration of intramuscular betamethasone to accelerate fetal lung maturity and reduce the risk of neonatal respiratory distress syndrome. The patient is fully alert, demonstrates a clear understanding of the clinical situation, and comprehends the potential risks to the fetus if the medication is withheld. However, she adamantly refuses the injection due to a personal objection to synthetic medications. She agrees to remain in the hospital for continuous monitoring but firmly declines any pharmacological interventions. Which of the following is the most appropriate next step in management?

Match each clinical scenario involving pediatric or maternal-fetal patients to the most appropriate ethical or legal management pathway.

A 28-year-old primigravida at 21 weeks gestation is admitted to the oncology unit after a bone marrow biopsy confirms acute promyelocytic leukemia. Her hematologist urgently recommends starting induction chemotherapy with all-trans retinoic acid and arsenic trioxide due to a high risk of imminent disseminated intravascular coagulation. The physician explains that without immediate treatment, she is highly likely to die within days, which would inevitably result in fetal demise. The physician also counsels the patient that the chemotherapy carries a significant risk of severe fetal toxicity and teratogenicity. The patient is alert, fully oriented, and clearly articulates an understanding of her prognosis and the consequences of refusing treatment. However, she adamantly refuses any medical intervention, stating, "I know I will likely die, but my faith forbids me from taking any medication that could intentionally harm my unborn child. I am leaving this in God's hands." Her husband is present and tearfully begs the physician to administer the treatment anyway to save her life. Which of the following is the most appropriate next step in management?