USMLE-Rx Step 2 Practice Q's

USMLE-Rx Step 2 Qmax Challenge #21106

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USMLE-Rx Step 2 Qmax Challenge #21106A 24-year-old woman presents to her primary care physician with a chief complaint of 1 week of increased vaginal discharge with an unpleasant odor. She is sexually active with one partner and uses oral contraception for birth control. A pregnancy test is negative. Gynecologic examination reveals a pink cervix and a thin white discharge. The discharge has a positive amine “whiff” test and a pH of 6. Wet saline mount microscopy yields the following image.

What is the etiology of this condition?

A. Facultative intracellular bacteria infection
B. Fungal infection
C. Parasitic infection
D. Polymicrobial synergistic infection
E. Viral infection

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USMLE-Rx Step 2 Qmax Challenge #21022

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Check out today’s Step 2 CK Qmax Question Challenge.

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USMLE-Rx Step 2 Qmax Challenge #21022A 2.5-year-old girl was diagnosed with a viral upper respiratory infection last week and now presents to her physician with a brassy cough and purulent airway secretions. Her parents believed that she may have croup and attempted mist therapy without success. The patient has been febrile to 39.0°C (102.2°F) for the past 24 hours and has had difficulty breathing during the past hour. Her review of systems is otherwise negative, and the mother denies that the patient has had any drooling or difficulty/pain when swallowing. Her heart rate is 92/min, blood pressure is 92/60 mm Hg, respiratory rate is 21/min, and temperature is 38.9°C (102°F). A Gram stain of secretions obtained in the office is shown in the image.

What organism is most likely responsible for this patient’s condition?

A. Anaerobic organisms
B. Moraxella catarrhalis
C. Nontypeable Haemophilus influenzae
D. Pseudomonas aeruginosa
E. Staphylococcus aureus

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This practice question is an actual question from the USMLE-Rx Step 2 CK test bank. Get more Step 2 CK study help at USMLE-Rx.com.

 

USMLE-Rx Step 1 Qmax Challenge #3358

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Check out today’s Step 1 Qmax Question Challenge.

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USMLE-Rx Step 1 Qmax Challenge #3358A medical student is asked to perform a cardiovascular examination on a patient. After 10 minutes of auscultation with no success, the medical student gives up and asks his resident for help. The resident puts up the patient’s anteroposterior chest radiograph (see image) and begins to explain the molecular etiology of this patient’s condition.

What is one complication that this patient is at increased risk of developing as a result of his condition?

A. Bronchiectasis
B. Heart failure
C. Mitral regurgitation
D. Pneumothorax
E. Small bowel obstruction

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USMLE-Rx Step 2 CK Qmax Challenge #21022

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Check out today’s Step 2 CK Qmax Question Challenge.

Know the answer? Post it in the comments below! Don’t forget to check back for an update with the correct answer and explanation (we’ll post it in the comments section below).

USMLE-Rx Step 2 Qmax Challenge #21022A 2.5-year-old girl was diagnosed with a viral upper respiratory infection last week and now presents to her physician with a brassy cough and purulent airway secretions. Her parents believed that she may have croup and attempted mist therapy without success. The patient has been febrile to 39.0°C (102.2°F) for the past 24 hours and has had difficulty breathing during the past hour. Her review of systems is otherwise negative, and the mother denies that the patient has had any drooling or difficulty/pain when swallowing. Her heart rate is 92/min, blood pressure is 92/60 mm Hg, respiratory rate is 21/min, and temperature is 38.9°C (102°F). A Gram stain of secretions obtained in the office is shown in the image.

What organism is most likely responsible for this patient’s condition?

A. Moraxella catarrhalis
B. Nontypeable Haemophilus influenzae
C. Pseudomonas aeruginosa
D. Staphylococcus aureus
E. Anaerobic organisms

———————–

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This practice question is an actual question from the USMLE-Rx Step 2 CK test bank. Get more Step 2 CK study help at USMLE-Rx.com.

USMLE-Rx Step 2 Qmax Challenge #21005

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Check out today’s Step 2 CK Qmax Question Challenge.

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USMLE-Rx Step 2 Qmax Challenge #21005A 2-year-old boy is brought to the clinic for evaluation after 2 days of low-grade tactile fever, irritability, and decreased activity. His mother reports that on waking him this morning, his pillow was stained with a small amount of yellow fluid. His heart rate is 92/min, blood pressure is 104/70 mm Hg, respiratory rate is 22/min, and temperature is 38.8°C (101.°F). His external ear canal is normal, and his otoscopic examination is shown in the image. Which of the following is the most likely bacterial pathogen implicated in this condition?

A. Haemophilus influenzae type B

B. Neisseria meningitidis

C. Pseudomonas aeruginosa

D. Staphylococcus aureus

E. Streptococcus pneumoniae

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This practice question is an actual question from the USMLE-Rx Step 2 CK test bank. Get more Step 2 CK study help at USMLE-Rx.com.

USMLE-Rx Step 2 Qmax Challenge #21423

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Check out today’s Step 2 CK Qmax Question Challenge.

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USMLE-Rx Step 2 Qmax Challenge #21423A 32-year-old man is found to have a solitary, firm mass in the thyroid on routine physical examination. He has no complaints and the remainder of his physical examination is unremarkable. Family history is significant for an uncle who died of thyroid cancer at age 40 years. A biopsy of the thyroid stained with Congo red is shown in the image.

What further study should be done in this patient?

A. Barium swallow
B. Measurement of serum insulin-like growth factor-1
C. Measurement of urinary metanephrine levels
D. MRI of the brain
E. Renal biopsy

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This practice question is an actual question from the USMLE-Rx Step 2 CK test bank. Get more Step 2 CK study help at USMLE-Rx.com.

USMLE-Rx Step 2 Qmax Challenge #21049

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Check out today’s Step 2 CK Qmax Question Challenge.

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USMLE-Rx Step 2 Qmax Challenge #21049An adolescent boy is evaluated for a recent skin infection (as shown in the image). He is otherwise healthy and has never had a similar episode. He has a noncontributory social and family history. During the interview, he mentions he really enjoys working out at the community gym each day. On physical examination, he has no symptoms other than a localized infection that is pruritic and mildly malodorous.

Which of the following tests is best to confirm diagnosis?

A. Full-thickness biopsy
B. Potassium hydroxide preparation
C. Skin allergen test
D. Tzanck smear
E. Wood’s lamp

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Want to know the ‘bottom line?’ Purchase a USMLE-Rx Subscription and get many more features, more questions, and passages from First Aid, including images, references, and other facts relevant to this question.

This practice question is an actual question from the USMLE-Rx Step 2 CK test bank. Get more Step 2 CK study help at USMLE-Rx.com.

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