Dr. Sattar for the win, this is a reperfusion injury. The cells dont have ATP so they cant run reduction reactions when they get 02 again. Its like being bankrupt they cant "pay" for thing like glutathione system etc so they get a build up of free radicals and free radicals cause lipid peroxidation
this was kind of a garbage question because she's still having normal periods, she hasnt hit menopause yet but shes close. What sells it it the BMI of 27 which is techncially overweight (normal BMI ends at 25) so the elevated fat is causing her to have hyperplasia from all the estrone coming from her fat. So during her proliferative phase the added estrogen from her fat is causing it to be overdone
you cant blame anyone for your being late. You have to deflect and stay broad because it creates a distrust in the medical system all the other ones place blame else where or make you look like the encounter isnt a priority
the semantics of this question made me want to put my fist through my laptop screen
this lady has eithe OCD or an anxiety disorder both first line for tx is an SSRI-> she washes her hands 30x a day and wakes the poor baby up 14 times a night. She's got multiple repetitive behaviors that aren't productive to solving the perceived problem
Possible causes of galactorrhea include: Medications, such as certain sedatives, antidepressants, antipsychotics and high blood pressure drugs. Opioid use. Herbal supplements, such as fennel, anise or fenugreek seed
^ from the mayo clinic.... emphasis on the HTN drugs
the way I approached this was that it didnt increase the amount of substrate to reach vmax so it couldnt have been any kind of comp inhib, also the efficacy is the same so it couldnt be an allosteric inhib
I picked the adrenal glands because cortisol has a permissive effect on blood pressure and gluconeo
I hate these so much these questions give me MCAT PTSD
Just another piss poor government institution cutting corners. If you've done NBME 18 and seen the cell diagram figure it is the literal pinnacle
For as much money as the NBME scams off of us they really do give you the most HEINOUS figures... if you've done NBME 18 there's a cell diagram that looks like the test writers toddler drew.
AT-II is the main stimulator of aldosterone release. This is kind of bull shit because that was the answer to one of the other NBME questions in ACTH cushing's disease "wHaT pArT oF tHe GlAnD iSn'T eNlArGed?"
this is how I looked at it extra cellular osmoles> intracellular so it will pull the h20 out.... then the high osmotic pull of the sugar overwhelming the SGL2 transporter in the kidney will pull the h20 out of the body dehydrating the extracellular compartment
The only reason I got this right is because I did a study for a practice on surgery cancelation rates and when we did lit review I read a paper that in middle eastern countries in areas where they are very very conservative muslim a lot of surgeries get canceled because their husbands dictate all of their care or can't be there to see their wives during the surgery. I think they're just wanting you to see the cultural difference and be aware of it. Which unless you haven read that one specific paper is like trying to see something with the sun in your eyes. Not defending the NBME but this question was garbage and almost as much bull shit as the platelet question
I got thrown off because there's an arrow point to the three unaffected daughters (with an affected father) so I thought XLR because they'd be carriers. And there was no generation skipping so that made me think AR
My reasoning for this question:
Believe this one is tubulointerstitial fibrosis of the kidney:
medullary cystic disease is characterized by autosomal dominant inheritance pattern progressive and slow impairment in renal function that ultimately results in end-stage renal disease no or minimal proteinuria with a bland urine sediment medullary cysts on renal ultrasound in most cases medullary cysts are not present can see shrunken kidneys on ultrasound
Are these gottron's papules from dermatomyositis? Pareaneoplastic syndrome from adenocarcinoma, esp ovarian?
Does anyone have a good explanation for why decreased levels of inhibin is wrong? From my understanding, inhibin and activin work together, in that inhibin binds and blocks activin leading to decreased feedback on hypothalamus and activin increases FSH and GnRH production.. thus, if you decrease inhibin then you would have increased activin which would lead to increased GnRH and FSH, right? I found one article talking about it in regards to puberty, but it seems to be a hypothesis/not confirmed at this point... is that why? But still... how do I rule it out on a test?
https://www.sketchymedical.com/products/catalog
CORONAVIRUS SKETCHY
positive sense RNA virus, sun crown corona king wearing robe - encapsulated helical virus - spiraling road, helical trees sneezing and blowing king - common cold with bronchiol tree on king pointing to SARS and middle east respiratory syndrome (acute bronchitis)
This virus replicates in the cytoplasm thats why King is outside his castle (nucleus)
My dumb ass thought ketonemia was like anemia of ketones or something and thus meant low ketones so I almost put fatty acid oxidation (hypoketotic hypoglycemia). FYI ketonemia is high ketones.
Defects in fatty acid oxidation would also be corrected with the sugar additions so even if you suck at medical vocab you could rule it out.
Synaptobrevin is the target of tetanospasmin (tetanus toxin); muscle spasms are characteristic. Only other answer you might consider is Acetylcholinesterase since he is a farmer and buzzwords often carry us to the promised land... but symptoms of a cholinergic storm are absent.
As per Pathoma,
"Vascular permeability occurs at the post-capillary venule"
This is why, when you have edema, you would have gaps in the venules.
MHC class 1 peptide antigen processing > "Antigen peptides loaded onto MHC I in RER after delivery via TAP (transporter associated with antigen processing)" - First Aid 2019.
Bare lymphocyte syndrome type 2 (BLS II; affecting MHC II) is due to mutations in genes that code for transcription factors that normally regulate the expression (gene transcription) of the MHC II genes. Bare lymphocyte syndrome type 1 (BLS I; affecting MHC I), is much more rare, and is associated with TAP deficiencies.
at BMI 15 not only has she never had a period but she never had a meal.
Tfw NBME said there's no repeats on 23 and 24 and then you get a repeat.
this is how I looked at it extra cellular osmoles> intracellular so it will pull the h20 out.... then the high osmotic pull of the sugar overwhelming the SGL2 transporter in the kidney will pull the h20 out of the body dehydrating the extracellular compartment
Mixed up cytoscopy with culposcopy so I put HPV. Insert upsidedownsmileyface.jpg
i get why it's hyporeflexia, but why not fibrillations? it's also an LMN sign
Everyone who got this question right is a cop. เผผโโ ูอโ เผฝ
Testicular torsion mostly happens in young boys, rarely in adults. Also the pain started at the flanks, which is not how torsion pain starts.
The diagnosis is strawberry hemangioma, commonly happens in kids, often resolves on its own as they get older.
I get these VERY often. I seem to get them only after eating something that can damage the mucosa in my mouth such as hard chips (Tostitos, very jagged very pain). These are NOT cold sores (HSV). This is simply a aphthous ulcer; they can be stress induced (studying for hard test). they are very painful and do reoccur. there are no associated sx with them.
x-ray corresponds to a tension pneumothorax = imminent respiratory failure if untreated. Right lung is fully collapsed, increasing intra-thoracic pressure, imparing O2 exchange (due to mass effect toward left lung, and collapsed right one), hence accumulating CO2 (in blood), inducing respiratory acidosis.
I thought that the cognitive impairment could be the manifestation of neurosyphilis. In addition, the doctor should talk directly to the patient to check for sexual abuse.
Platelet adherence and platelet aggregation are different things and this diferrence MATTERS A LOT. Fuck you, NBME. These differences supposedly matter on some questions and not on others. Where is the consistency? Hello?
Im gonna fight this one because AGGREGATION is mediated by expression of Gp IIb/IIIa.
If your platelet increases TXA2 that means is gonna upregulate AGGREGATION by which receptor? ... Duh
Once Im done with this test and become a Pathologist Im gonna send you a copy of my journal and research on platelet aggregation mediated by TXA2 and Gp IIb/IIIa and also im gonna go over every single WTF NBME question and prove them so wrong
Maybe i should change my username before submitting this
Platelet adherence and platelet aggregation are different things and this diferrence MATTERS A LOT. Fuck you, NBME. These differences supposedly matter on some questions and not on others. Where is the consistency? Hello?
Wasn't sure about others, but mammography for general population isn't recommended until 40
just wanted to add that questions that ask small details like this make me want to carve my eyeballs out
Lung volume will decrease in obesity hypoventilation syndrome. Even though this patient is obese, he has all the clinical features of sleep apnea
Whats the difference between โheterozygous null mutation in B globin geneโ and โheterozygous mutation known to cause 50% decrease in B globin gene function of one alleleโ?
Can someone please explain this? What is the diagnosis here?
From a girls perspective, is really hard to understand this penis/erection physiology questions
There are two mechanisms of regulating renal blood flow, the myogenic mechanism and tubulo-glomerular feedback. This question asks purely about the myogenic mechanism, which is where the afferent arteriole controls blood flow based purely off blood pressure entering the kidney, which is why decreased afferent arteriolar resistance is the best answer (the arteriole is dilating in response to the decreased blood flow in attempt to maintain normal blood flow to the kidney).
I hated everything about these answer choices