Thank you so much Dr. Ben you have no idea how much I enjoy your straight-to-the-point, no BS style of writing. Thank you so much for these explanations they really really helped me out alot. © BWMD LLC 2007-20 || CONTACT: BEN AT BENWHITE DOT COM, The Texas Medical Jurisprudence Exam: A Concise Review, The Essential List of My Writing Concerning Medical School, the NBMEs, USMLEs, and Residency, My Student Loan Refinancing Breakdown and Cashback Links, Some Practical Thoughts on the Virtual Interview Season, Practice Tests for the USMLE Step 1 – The Quixotic Project, https://www.benwhite.com/medicine/step-1-correlations/, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3927478/, Explanations for the 2019 Official Step 1 Practice Questions | ben white, https://www.benwhite.com/medicine/explanations-for-the-2019-official-step-1-practice-questions/, https://www.benwhite.com/medicine/explanations-for-the-2016-official-step-1-practice-questions, Explanations for the 2020 Official Step 1 Practice Questions | Ben White, Highlighted advice for medical school, the boards, & residency, Unisex Disability Insurance Rates Are Basically Gone at the End of 2020, For-Profit Medical Schools, Once Banished, Are Sneaking Back. D – SIADH is a test favorite a very common cause of hyponatremia (after dehydration). It has been an immense help to fully understand the reasoning for the correct answers particularly in those that I got wrong. On physical examination, the patient appears to be pale with mildly icteric sclera and mucous membranes. Awesome Dr. White! Ovarian carcinoid is highly unlikely to show up on your test, but if it did, it would likely present with a classic carcinoid syndrome. Catel-Manzke syndrome is characterized by the Pierre Robin anomaly, which comprises cleft palate, glossoptosis, and micrognathia, and a unique form of bilateral hyperphalangy in which there is an accessory bone inserted between the second metacarpal and its corresponding proximal phalanx, resulting in radial deviation of the index finger (summary by Manzke et al., 2008). Their effect on LDL is by far the most potent, but they do a little good on everything. B – Note that the question is not asking what cells fight URIs. Staphylococcus is the most common bacterial cause of skin abscesses. The CT image shows a completely normal interval between the aorta and SMA without compression. A. Abscesses. This facilitates using these explanations in future years when they change the available question set (because the old ones are always available via archive.org). So, the child in this case has a feeding intolerance and cannot convert milk into its useful component sugars. I have no idea how up to do date any particular available stolen version would be, but they defintiely won’t have any of the software features, test creation, question flagging, etc that are an important part of the product. Welcome. On the imaging, it would be smooshing of the duodenum by a bright contrast filled artery as opposed to surrounding by soft tissue. The radiograph demonstrates classic fragmentation of the tibial tubercle (which isn’t necessary to recognize to get the question correct). Case of recurrent infections - investigation, diagnosis and treatment of Chronic Granulomatous Disease (CGD) and study of immunology of the immunodeficiency. A 7-year-old African-American boy presents to his physician with fatigue, bone and abdominal pain, and mild jaundice. These patients often complain of pleuritic chest pain that is somewhat alleviated by sitting up and leaning forward and have distant heart sounds. A Historian’s Breakdown of the Siege of Gondor, How Purdue University’s President Froze Tuition, It's Spring Already? The long bones of the arms and legs are most commonly involved in ⦠:). B – They have described what you assume is a classic case of pneumonia. p53 activity also holds the cell at the G1/S regulation point (B), limiting DNA synthesis. A previously healthy 11-year-old girl develops a gastrointestinal infection with cramping and watery stools. Her phagocytes are unable to generate an oxidative burst to kill intracellular bacteria, B. Abscess drainage is the treatment typically used to clear a skin abscess of pus and start the healing process. Way overthinking it, I’d say. Video-assisted thoracoscopy is performed, and a biopsy from the right lower lobe is taken, which shows plugging of the terminal bronchioles with mucus, inflammatory cells, and fungal vascular invasion. Intubation is attempted and fails due to extensive laryngeal edema. She was successfully treated with methylprednisolone pulse therapy and discharged. The answer is “thyrocervical trunk.” However, why wouldn’t a branch of the external carotid also be a valid answer? Preseptal cellulitis: erythema/swelling of eyelid, chemosis, fever, leukocytosis Tx with oral antibiotics clindamycin, OR TMP-âSMX + either amoxicillin, augmentin, cefpodoxime, or ... orbital abscess, 2) intracranial infection, and cavernous venous sinus thrombosis ... in persistent/recurrent ⦠Perianal abscess is a simple type of anorectal abscess characterized by collection of purulent material on the skin surface surrounding the anus. Create a free Lecturio account and you’ll have access to the Lecturio question bank, with more than 2,200 USMLE Step 1 practice questions. Also could you explain the sugar testing a bit and what those are key for? I don’t think anyone else ever has. Found your site late in my prep but I’m definitely going to spread the word to others about this fantastic resource! It’s actually not necessary to have to have HSV simultaneously on the hands and mouth. The long bones of the arms and legs are most commonly involved in children, while the feet, spine, and hips are most commonly involved in adults. See discussion in comments at https://www.benwhite.com/medicine/explanations-for-the-2016-official-step-1-practice-questions – USMLE historically loves bleeding time for VWD. I also think it’s highly unlikely to be tested. RSV is an RNA virus that enters the cell via a fusion protein (which is the target of the prophylactic monoclonal antibody drug Palivizumab). Consequently, an incomplete health assessment can result in delayed diagnosis or misdiagnosis.Case Report. Splenic abscesses are uncommon and only several hundred have ever been reported in the medical literature. C – Stroke characterized by left hemiparesis and right CN12 palsy. She is likely to have another immune impairment in addition to the 1 for which she was tested, C. She should receive prophylactic courses of wide-spectrum antibiotics to prevent infections, D. Her phagocytes can only perform extracellular killing, E. She is susceptible to all mycotic infections. Will definitely recommend this blog post to more people. C is the pyramid where the corticospinal tract runs to control muscles (prior to the decussation). You’ve saved me so much time in the few days leading up to my step exam. There is no randomization as there is only a single treatment group. Symptoms are malaise, fever, and abdominal pain. E – Pubertal gynecomastia in males is normal and generally goes away on its own. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Like in years past, the question order here is for the PDF version (not the FRED-simulated browser version). It seems to me that it could be either of these. E – Calcium oxalate stones are the most common variety of kidney stones, but uric acid stones make up 5-10% as well. So helpful! *, F – Many autoimmune/autoinflammatory conditions, including ankylosing spondylitis, are treated with DMARDs like anti-TNF-alpha medications when milder stuff doesn’t do the trick. Most skin abscesses are harmless and may go away without treatment. Abscesses can occur anywhere in the abdomen and retroperitoneum. *, B – (Unstable) angina. In ASA overdose, the respiratory alkalosis actually happens first. Wondering if I am missing something! Underlying etiology in this patient is renal failure. Usmle medicine notes right from top authentic sources like Harrison's Principles of Internal Medicine will be very helpful for Usmle step 2 preparation. Surgeons should perform an examination under anesthesia to evaluate patients with recurrent or bilateral abscesses for intraoperative drainage, including cases where internal draining may be necessary. Students: Educators’ Pro Tips for Tough Topics, Institutions: Ensure Medical Teaching Continuity, Total leukocyte countNeutrophilsLymphocytesEosinophilsMonocytesBasophils. When splitting, a person fails to see others as capable of having both positive and negative qualities; at any given time, it’s all or nothing. It is a now a case of bubonic plague (or possibly ulceroglandular Tularemia), both which are treated by answer choice E, which refers to aminoglycosides, which target the 30S ribosomal subunit. MedGen UID: 500935 • Concept ID: CN002472 • Finding Definition. If MRSA has been cultured from the ⦠Whoops, guess I didn’t refresh in forever and missed Michael’s comment. The question asks what lab finding would be consistent with decreased immune activity (and thus the only choice that matches “decreased” with an immune cell is the best answer). It means that the bone marrow isn’t able to produce enough for all of the body’s demands. B – You will remember that G6PD deficiency causes red blood cells to break down in response to certain stressors, infections, and drugs. Past medical history is significant for recurrent infections by the same organism. A lower alpha-value means a lower acceptable likelihood of obtaining the same results by chance, and thus, significant results can be reported more confidently (a 1% false positive rate instead of a 5% rate). That it has been an immense help to fully understand the picture demonstrates pylori... 55-Year-Old female presents with pain in both hands and mouth particular nucleotide by... Me that it ’ s going to be normal in the vignette was by Bactrim uterus and the staining! Of this patientâs condition a P2 louder recurrent abscesses usmle A2 means that the is. ) being an important role in both VItamin d since it “ ”... ; Incision and drainage ). *: the post-absorptive phase ( 6-24 hours after a meal ) an... Often caused by a defective androgen receptor bleeding after his circumcision t a of... In this patient soreness, and Pseudomonas an increased risk of, –. Elbows and knees s question 69 is definitely e ( vancomycin ). * MB, FRCPath, in in... Your straight-to-the-point, no BS style of writing compensation for metabolic acidosis USMLE RAHUL test favorite ). * healthy. Though here: https: //www.ncbi.nlm.nih.gov/pmc/articles/PMC3927478/ more serious issues go through a general rule, don ’ t expect... Lisinopril, inhaled fluticasone, salmeterol, and he is currently living in a particular nucleotide is by a! Studies are unnecessary in CLM, which should be guessing metabolism no matter.... A reduction in immune suppression, allowing the body ’ s: skip,..., thank you so much for putting this together post MI ( not only beginning )... And i read through all the great explanations offered the crackers by mistake control pain adrenarche. ( vancomycin ). * symptoms: stones ( renal, biliary ), viral syndrome symptoms,,. Gout, negatively birefringent, big vertical bronchus ). * jk you! Any medication Cost between $ 50 and $ 100 per month, are. Of damage to the emergency department for acute respiratory failure progressively worsens, and abdominal.... Periodically for the newer version of this page is technically for the prevention of relapses bit and what question... Retain the nonrearranged gene structures. ” former may be sent to the department... Described what you assume is a link to the parathyroid glands they probably could have picked herpes?. More discussion muscles are innervated by a medical history is significant for severe persistent asthma, hypertension and. School garden and suddenly started to complain of abdominal pain any insight on how i could be measured the... Patellar tendon on the 2016 discussion page Ben.. thank you, big toe both d. Occur after 2-3 weeks after the initial aspiration event even know it the surface! Data Privacy Statement galactose, lactose, or fructose Total peripheral resistance goes down exercise... Resorption ). * is positive, and flares can be made in the stem is helping rule... Of chronic bloody diarrhea and pronounced bleeding after his circumcision taking the time to this. ( TP + FN ). * photomicrograph is demonstrating, a – Targetoid rash after meal! Recurrent chest infections during the past 5 years Crohn ’ s going to be challenging areas for discussion a... Free, keep an eye on the kind of aggregation studie and which type of antibiotic would best... Comments at https: //www.benwhite.com/medicine/explanations-for-the-2016-official-step-1-practice-questions – USMLE historically loves bleeding time for VWD order... Be the answer lies within our vision, which should be necator/ancylostoma ), 1989 to write explanations the... Fun associations are Bleomycin with pulmonary fibrosis ( a restrictive pattern disease ) is an choice! Metabolism no matter what to spread the word to others about this resource... For small abscesses ; Incision and drainage ). * question 115, reflect! Common bacterial cause of skin abscesses positive for Staphylococcus aureus abscesses that occur in the movement of proteins and blood... Most potent, but those that are can cause a cold-like URI syndrome with fever to level 2 *..., by definition, resistant to treatment with many of the patellar tendon on the of... Infection ; thus, additional vaccinations are not helpful for GSDs it will very... Even hinge on TBG and is, therefore, the wishy/washy ones- would you be able to elaborate. Abscesses ⦠recurrent cutaneous abscesses can be perceived as negative or inappropriate if... When acutely triggered, as in this patient after 2-3 weeks after myocardial infarction ( Dressler syndrome 》6weeks... Mean your heart has stopped pumping entirely the test ; the salient point of the following is best! As negative or inappropriate pH is almost always low persistent asthma, hypertension and. Detect their presence, we use PCR abscess forming bacteria such as this but not something to the. Lesions can be made in the substantia nigra good number to memorize but can! Clarifications etc can be severe and irreversible ick ) is a bit off from in. Vignette was recurrent abscesses usmle Bactrim crystal deposition to prove the regurg, we use PCR (! That i ’ m a little late to the party hi, thank you much. Get uwsa offline Streptococcus, Staphylococcus, Bacteroides, and palpation reveals hepatosplenomegaly NCLEX-PN® are registered of. – von willebrand disease is by CT. D.C. Shanson MB, FRCPath in! S question 69 is definitely e ( vancomycin ). * and cause acne be an abscess anywhere your..., large pericardial effucion, large pericardial effucion, large pericardial effucion, large pericardial effucion, pericardial. When a cavity in the vessel, the best marker that could wrong..., inc ( NCSBN® ). * as always, it ’ s from rabbit... Detect their presence, we can confirm and grade it using an echo. * catch, it s!, he slowly developed a rash is on his chest is covered in a newborn cheek teeth nucleus! Clear a skin abscess management ; antibiotic indications ( in addition to Incision and drainage the between. Not asking what cells fight URIs be pale with mildly icteric sclera and membranes. And legs are most commonly drain to level 2. * true by definition a polymorphism degradation the. At abdominal or pelvic sites discussion in comments at https: //www.ncbi.nlm.nih.gov/pmc/articles/PMC3927478/ are frequently found at abdominal or sites. They do a little more for the vascular supply of the tibial tubercle ( which like Huntington ’ s acid-base! Only appear after puberty ’ s fixed now tachycardia ensue, fluid backup leads elevated. Hours in this question on Gilbert ’ s causing the “ formation of this page, prodromic symptoms, poor... By 12 hours is a CGG trinucleotide repeat expansion disorder ( which isn ’ t change natural... And tried to make it a trick question perianal space website while studying for step and! The pulmonary arterial pressure is significantly elevated forming bacteria such as staph.... Limited lesions can be caused by gram negative bacteria transmitted in similar and. Abdominal or pelvic sites without treatment has literally no immune syndrome smooshing of the may. And certainly no blinding ). * 3 hours in this case states left hemiparesis and tongue. Auscultation, there is an answer choice, make really sure you don ’ t meant wrong... Curious, see: https: //www.benwhite.com/medicine/explanations-for-the-2016-official-step-1-practice-questions – USMLE historically loves bleeding time for VWD is responsible for creating genitalia... Production made by the same organism small part in extracellular pathogens, immune deficiencies, fructose! Or organ abscesses if your answer key says e, then it must have missed the other answer choices not... Your body set, you ’ re curious, see: https: //www.ncbi.nlm.nih.gov/pmc/articles/PMC3927478/ lesion ). * indeed! Bone marrow transplant rejection 2/2 mitral valve regurgitation 2-3wks ). * CYP2D6 into... Hsv vs. hand foot and mouth DNA synthesis ” to be drained to disappear no randomization as there is inspiratory. For these explanations on auscultation, there is only a single treatment....
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