NBME Sample Questions& Answers
RSV is an RNA virus that enters the cell via a fusion protein (Ans- (which is the target of the prophylactic monoclonal antibody drug Palivizumab)
Gram-positive rods in a diabetic foot wound (or a World War I soldier fighting in a trench) means (Ans- means Clostridium perfringens (the causative organism of gas gangrene). Crepitus means gas in the tissues, which is produced as a byproduct of its highly virulent alpha toxin
Crepitus (Ans- means gas in the tissues, which is produced as a byproduct of its highly virulent alpha toxin
Clostridium perfringens (Ans- (the causative organism of gas gangrene).
The causative organism of a a necrotizing wound with a purplish. black discoloration (Ans- most likely produces an alpha toxin virulence factor
With Von Willebrand's (Ans- the only laboratory abnormality is increased bleeding time (literally you prick the patient and see how long it takes them to stop bleeding).
von Willebrand disease Frequently, On Step, bleeding women have VWD.Bleeding boys have hemophilia.(Ans- is by far the most common inherited bleeding diathesis.
On the USMLE Step exam (Ans- bleeding women have VWD. Bleeding boys have hemophilia.
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Autism -like behavior (Ans- resist making eye contact and flapping hands
Fragile X Syndrome (Ans- Autism-like behaviors (resist making eye contact and flapping hands) and large testicles after puberty
Fragile X Syndrome caused by (Ans- trinucleotide repeat expansion
RSV is an RNA virus that enters the cell (Ans- via a fusion protein (which is the target of the prophylactic monoclonal antibody drug Palivizumab).*
RSV is an RNA virus (Ans- causes RSV Bronchialitis
RSV is an RNA virus (Ans- has a property of mediation of cell entry via fusion protein
β2 adrenergic agonists' effects on smooth muscle (Ans- cause dilation of bronchial passages, vasodilation in muscle and liver, relaxation of uterine muscle, and release of insulin
β2 adrenergic agonists (Ans- are primarily used to treat asthma and other pulmonary disorders, such as COPD bilateral wheezing as a result of a bee sting
The purpose of Rhogam (Ans- is to bind to and remove the RhD antigens so that the mother does not form an immune response against the antigen in fetus' blood.
Rhogham administration (Ans- It's given to at-risk Rh- moms at 28 weeks and at deliver
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Mom is group O and baby is RH Negative give (Ans- give Rhogham
Metformin causes (Ans-
- Hepatic glucose out put to be decreased
- target tissue glucose uptake and utilization to be increased
Metformin(Glucophage) (Ans- decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization.*
colicky right flank pain that radiates to the groin and hematuria.Ultrasound examination of the kidneys shows right-sided hydronephrosis and a dilated ureter.Which of the following is most likely to be found on urinalysis?(Ans- Uric acid crystals
Neisseria gonorrhoeae gram stain of the exudate (Ans- shows numerous neutrophils, many that contain intracellular gram- negative diplococci.
Neisseria gonorrhoeae (Ans- is able to switch out different pilin genes, and for this reason, prior infection does not confer long-lasting immunity.
Gonorrhea (Ans- Gonorrhea can change its pilus, which is responsible for adhesion to host cells and the main antigen to which the host mounts an immune response.
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