Free SPEX Analysis Exam Question and Answers — Questions and Answers
Question 1: A mole on the student's back has changed in size and color, and he is a 24-year-old medical student. He has no family history of skin cancer and is in good health. Although he has fair skin and served as a lifeguard for two summers while in college, he cannot recall ever getting a bad sunburn. Recently, the mole has occasionally itched, which has drawn his attention to it. The 0.8 cm-long lesion has an uneven border and is located on the left upper back, slightly below the shoulder. No nodule is palpable, however, there are minor color variations. On examination with a magnifying lens, no ulceration was found. Except for a few benign-looking skin nevi, the rest of his physical evaluation is ordinary. Lymphadenopathy is not seen in the cervical, supraclavicular, or axillary areas. There is a wide excisional biopsy of the mole.<br> <br> Which of the following pathologies and clinical findings is most crucial for determining prognosis?
- Age of patient
- Location of the melanoma
- Tumor thickness (Correct answer)
- Sex of the patient
- Depth of penetration
Correct answer: Tumor thickness
For melanoma, tumor thickness, also known as Breslow depth, is the single most important prognostic factor. It directly correlates with the risk of metastasis and overall survival. Thicker melanomas indicate a deeper invasion into the skin layers and are associated with a worse prognosis. This measurement is crucial for staging the melanoma and guiding subsequent treatment decisions.
Question 2: Prednisone 40 mg/day was prescribed to the patient, and during the following two weeks, his symptoms significantly improved. But when the dosage is reduced to 20 mg per day, the illness worsens.<br> <br> What will happen with this patient's care after that?
- Segmental resection of the terminal ileum
- Begin a 5-aminosalicylic acid-containing drug
- Increase the steroid and maintain him on this indefinitely
- Add powdered opium and belladonna along with a nonsteroid anti-inflammatory drug (NSAID)
- Temporarily increase the steroid, and then add an immunosuppressant such as 6-mercaptopurine (6-MP) or azathioprine (Correct answer)
Correct answer: Temporarily increase the steroid, and then add an immunosuppressant such as 6-mercaptopurine (6-MP) or azathioprine
The patient's steroid-dependent course indicates that while prednisone controls symptoms, the disease flares upon dose reduction, making long-term steroid use unsustainable due to side effects. The appropriate next step is to temporarily increase the steroid dose to regain control, then introduce a steroid-sparing immunosuppressant like 6-mercaptopurine (6-MP) or azathioprine. These medications help maintain remission and allow for gradual steroid withdrawal, reducing steroid-related complications.
Question 3: The patient is given bed rest and is under strict observation, but her blood pressure remains high and at 32 weeks, her urine still reveals 1+ to 2+ proteinuria. <br> <br> What do you suggest right now?
- Magnesium sulfate intravenously
- Calcium supplements and low-dose aspirin
- Antihypertensive treatment with an angiotensin-converting enzyme (ACE) inhibitor
- Antihypertensive treatment with methyldopa (Correct answer)
Correct answer: Antihypertensive treatment with methyldopa
The patient's persistent high blood pressure and proteinuria at 32 weeks gestation are indicative of preeclampsia. While magnesium sulfate is used for seizure prophylaxis, the immediate concern is managing the hypertension. Methyldopa is a first-line antihypertensive medication considered safe and effective for use during pregnancy. Angiotensin-converting enzyme (ACE) inhibitors are contraindicated due to fetal toxicity.
Question 4: A 35-year-old married woman contacts you since her older sister recently received a breast cancer diagnosis and her mother passed away from the disease in her 40s. She is Jewish, and her Polish-born grandparents are. She is interested in learning what she may do to reduce her risk of contracting the illness. She has a child who is 5 years old, is in good health, and plans to have one or two more children in the future. It's normal to examine your breasts. She tested positive for the BRCA2 gene, according to genetic testing. Though it is brought up, she declines to consider a bilateral mastectomy. <br> <br> What would be the most effective strategy for handling her case?
- Schedule an MRI of the breast and if negative, annual examination only
- Schedule an MRI of the breast and if negative, start tamoxifen (Correct answer)
- Refer to a radiation therapist for prophylactic radiation treatment to both breasts
- Schedule a mammogram and if negative, order an annual mammogram
Correct answer: Schedule an MRI of the breast and if negative, start tamoxifen
For BRCA2 gene carriers, the risk of breast cancer is significantly elevated. Annual breast MRI is recommended for surveillance due to its higher sensitivity in dense breasts. Additionally, tamoxifen, a selective estrogen receptor modulator (SERM), is approved for chemoprevention in high-risk premenopausal women, significantly reducing the risk of estrogen receptor-positive breast cancer. This combined approach offers enhanced surveillance and pharmacological risk reduction, especially since she declined mastectomy.
Question 5: A 20-year-old woman comes to see you for menorrhagia and easy bruising. Her gynecologist notes that the pelvic exam was normal. Additional medical history includes bruises from minor childhood injuries, sporadic spontaneous epistaxis, and heavy periods ever since menarche at age 13. She hasn't undergone surgery, but the dentist suggested a workup for a bleeding issue because she had chronic bleeding following dental extraction. She hasn't experienced any joint or deep intramuscular hemorrhage. She doesn't use any medications that affect platelet function, such as aspirin. Her family history is missing because she was adopted. Other than a few bruises on her extremities, her physical examination was normal. There is a slight iron deficient anemia.<br> <br> Which of the subsequent laboratory tests has the greatest chance of supporting the clinical diagnosis?
- Platelet count
- Activated partial thromboplastin time (aPTT)
- Factor VIII assay
- Prothrombin time (PT)
- Ristocetin-induced platelet aggregation (RIPA) (Correct answer)
Correct answer: Ristocetin-induced platelet aggregation (RIPA)
The patient's symptoms of menorrhagia, easy bruising, sporadic epistaxis, and prolonged bleeding after dental extraction are classic for a primary hemostasis disorder, most commonly von Willebrand disease (vWD). Ristocetin-induced platelet aggregation (RIPA) is a key diagnostic test for vWD, as it assesses the function of von Willebrand factor (vWF) in mediating platelet aggregation, which is deficient or dysfunctional in this condition.
Question 6: A 75-year-old woman who has been experiencing palpitations and shortness of breath for the past day is examined in the emergency room. She is discovered to be in atrial fibrillation (AF), with 100 ventricular beats per minute and a 100/70 millimeter-Hg blood pressure. Heparin is used to prevent clotting, and intravenous diltiazem is used to restore her heartbeat to a normal sinus rhythm. There are no signs of severe coronary artery disease, heart failure, or left atrial thrombi in the clinical, imaging, or laboratory data. <br> <br> Which of the following drugs would be appropriate for discharge?
- Amiodarone
- Digoxin
- Sotalol
- Warfarin
- Any of the above (Correct answer)
Correct answer: Any of the above
For a 75-year-old patient with new-onset atrial fibrillation, even after cardioversion, long-term management typically involves a combination of rate control, rhythm control, and anticoagulation for stroke prevention. Amiodarone and sotalol are antiarrhythmic drugs for rhythm control, digoxin is for rate control, and warfarin is an anticoagulant for stroke prevention (given her age, her CHA2DS2-VASc score would be elevated). The specific choice depends on individual patient factors, making 'Any of the above' a plausible option for discharge medications.
Question 7: A 72-year-old guy seeks your advice due to fatigue and sleep issues. He has trouble going to sleep, and he frequently wakes up early. He claims that since his wife passed away from cancer two years ago, he has been in a depressed mood and has trouble concentrating. She is constantly on his mind. He no longer finds enjoyment in activities he formerly did, such as swimming, hiking, and hanging out with friends. Although he had fleeting suicidal thoughts, he never actually tried to end his life. He also didn't have any delusions, hallucinations, or sporadic mood changes. He avoids using other illicit drugs and lives alone. He consumes two to three alcoholic drinks every day. He has two adult children, but since they reside out of state, he rarely sees them. He uses the alpha-adrenergic blocker tamsulosin to treat his benign prostatic hypertrophy and moderate hypertension (Flomax). <br> <br> What type of treatment should be started and what is the most likely diagnosis?
- Major depression; start sertraline (Zoloft)
- Dysthymia; start trazodone
- Major depression; refer to a psychiatrist (Correct answer)
- Bipolar disorder; start lithium
- Drug-induced depression; stop Flomax
Correct answer: Major depression; refer to a psychiatrist
The patient's symptoms, including depressed mood, anhedonia, insomnia, fatigue, concentration issues, and fleeting suicidal thoughts, lasting for two years since his wife's death, meet the criteria for major depressive disorder. Given the chronicity, severity, and potential complexities in an elderly patient with alcohol use, referral to a psychiatrist is the most appropriate next step. A psychiatrist can provide specialized assessment, initiate appropriate antidepressant therapy, and manage potential comorbidities more effectively.
Free SPEX Analysis Exam Question and Answers
A mole on the student's back has changed in size and color, and he is a 24-year-old medical student.
He has no family history of skin cancer and is in good health.
Although he has fair skin and served as a lifeguard for two summers while in college, he cannot recall ever getting a bad sunburn.
Recently, the mole has occasionally itched, which has drawn his attention to it.
The 0.8 cm-long lesion has an uneven border and is located on the left upper back, slightly below the shoulder.
No nodule is palpable, however, there are minor color variations.
On examination with a magnifying lens, no ulceration was found.
Except for a few benign-looking skin nevi, the rest of his physical evaluation is ordinary.
Lymphadenopathy is not seen in the cervical, supraclavicular, or axillary areas.
There is a wide excisional biopsy of the mole.
Which of the following pathologies and clinical findings is most crucial for determining prognosis?