USMLE-Rx Step 2 Qmax Challenge #21507

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Check out today’s Step 1 Qmax Question Challenge.

Know the answer? Post it 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 #21507A 23-year-old G1P0 woman at 37 weeks’ gestation is seen in the antepartum care unit. She is having regular contractions and the cervix is two fingerbreadths dilated on sterile pelvic examination. Results of electronic fetal heart monitoring are shown in the image.

What mechanism best explains the findings seen on this tracing?

A. Artifact from strong uterine contractions
B. Compression of the umbilical cord by uterine contractions
C. Fetal arrhythmia
D. Pressure on the fetal head coincident with uterine contractions
E. Reflex response to fetal hypoxia from fetal anemia

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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.

 

“‘Twas the Shift Before Christmas”: A Holiday Ode to Med Students

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Happy Holidays

By the First Aid Team

‘Twas the shift before Christmas, when all through the wards
Not a creature was stirring, they were studying for boards;
The stethoscopes were hung by the front desk with care,
In hopes that the First Aid Team soon would be there;

The med students were waiting all snug in their scrubs,
As they took a few minutes to inhale some bad grub;
And doctor in her ‘kerchief, and I in my mask,
Had just settled in for a long surgical task,

When out in the parking lot there arose such a clatter,
I sprang from the OR to see what was the matter.
Away to the pit I flew like a flash,
And ran into a big guy with a skid and a crash.

His eyes — how they twinkled! He breathed a deep sigh!
His face was so red, his BP clearly too high!
Still, behind him soon did appear,
An ambulance-sized sleigh loaded with Step study gear.

He spoke not a word, but went straight to the ED,
And asked the head nurse to refill his ARB,
Then, laying his finger aside of his nose,
And giving a nod, up the elevator he rose;

He strode through the wards, passing out Qmax and Flash Facts galore,
While gunners ran beside, shouting wishes for perfect Step exam scores.
The rest of us gaped and grinned as we grasped,
A free, three-month subscription to Step 1 Ultimate and Express.

This guy was laughing and happy, a right jolly old elf,
And I knew when I saw him, I’d pass my next shelf;
With First Aid for the USMLE books, I’d have knowledge in my head,
And with such great study guides, I had nothing to dread;

He passed out his last batch of study tools, and sprang to his sleigh
Turned on the siren and fired up the bay;
I heard him exclaim, ere he drove out of sight,
HAPPY HOLIDAYS TO ALL, AND TO ALL A GOOD NIGHT!

USMLE-Rx Step 1 Qmax Challenge #3498

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Check out today’s Step 1 Qmax Question Challenge.

Know the answer? Post it 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 1 Qmax Challenge #3498A 35-year-old woman presents to the emergency department because of abdominal pain and diarrhea mixed with mucus and blood. She also has ulcerated lesions with violaceous borders on her legs. Gross blood is present on rectal examination. A biopsy of her colon reveals inflammation confined to the mucosa and submucosa, as shown in the image.

Which of the following would most likely be used to treat this patient?

A. Infliximab
B. Nizatidine
C. Omeprazole
D. Ondansetron
E. Sucralfate
F. Sulfasalazine

———————–

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 1 test bank. For more USMLE Step 1 prep, subscribe to our Flash Facts and Step 1 Express video series. Score the best deal on all three products with a Step 1 Triple Play Bundle.

Mnemonic Monday: Structures of the Diaphragm

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By Haley Masterson

Mnemonics are an important tool for approaching Gross Anatomy. Here’s one for the diaphragm that will help you not only in orienting yourself in the lab, but also in identifying cross-sectional levels on x-rays in the future.

I Ate 10 Eggs At 12

The diaphragm has 3 main hiatuses – the hiatus of the inferior vena cava (IVC), the esophageal hiatus, and the aortic hiatus. The IVC passes through the diaphragm at the level of T8 (I “ate”), the esophagus passes at the level of T10 (“10 Eggs”), and the aorta passes through at the level of T12.

 

Annotation Nation

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By Tim Durso

Annotation NationOne of the greatest challenges in studying for Step 1 is deciding what information is worth trying to remember. In an ideal world, you’d be able to memorize every bit of information you come across the first two years of med school, but if you could do that you’d be playing blackjack in Las Vegas with Tom Cruise instead of cramming your brain full of lysosomal storage diseases (that’s a Rain Man reference for those less movie-inclined). One of the best ways to machete your way through the thicket of medical knowledge out there is to annotate your handy-dandy version of First Aid (see here for the latest and greatest version).

While everyone agrees that annotation is an essential part of the sacred rite that is Step 1 studying, everyone seems to have a different approach. I’m going to try to help analyze some of these different approaches, and hopefully you’ll come away with a better understanding of what might work for you in your preparation. To accomplish this, I’m going to borrow elements from the famous children’s tale of “Goldilocks and the Three Bears.” If you haven’t heard of this story, call your parents and ask them why, and then Google it before reading further. (more…)

USMLE-Rx Step 1 Qmax Challenge #3493

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Check out today’s Step 1 Qmax Question Challenge.

Know the answer? Post it 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 1 Qmax Challenge #3493A 45-year-old man presents with a low-grade fever, hoarseness, cough, and a sore throat. On physical examination, he has swollen cervical lymph nodes. Gram stain of his sputum is obtained, and the specimen is shown in the image. Secretions obtained from the patient’s tonsils are analyzed using polymerase chain reaction, and a diagnostic protein subunit is found.

The exotoxin responsible for his symptoms inhibits protein synthesis by which of the following mechanisms?

A. Activation of adenyl cyclase by adenosine diphosphate ribosylation
B. Activation of Gs
C. Adenosine diphosphate ribosylation of elongation factor 2
D. Inhibition of Gi
E. Stimulating macrophages to release tumor necrosis factor-?

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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 1 test bank. For more USMLE Step 1 prep, subscribe to our Flash Facts and Step 1 Express video series. Score the best deal on all three products with a Step 1 Triple Play Bundle.

Mnemonic Monday: Hypersensitivity Reactions

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By Haley Masterson

The 4 categories of hypersensitivity reactions is one of those subjects many students suspect we’ll never need to remember. But, in fact, this topic will likely haunt us for the rest of our medical career no matter what field we go into (even surgical residents have to review this topic for their ABSITE exam), so you may as well memorize the 4 categories now.

(more…)

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