Questions and Solutions
Graded A+
Precipitating cause of ARDS - Answer: Endothelial injury--> results in the release of cytokines
that recruit neutrophils to the lungs. Increase capillary permeability and leads to hyaline
membrane formation.
KW nodule - Answer: DM
Conduction velocities high to low - Answer: Purkinje> atria> ventricles> AV node
Location of SA node - Answer: RA wall near the SVA
AV node location - Answer: Interarterial septum near the tricuspid orifice
What is the complication of Paget's disease? - Answer: Osteosarcoma
Focal periosteal elevation and reactive new bone formation - Answer: Osteosarcoma
Globus sensation - Answer: Feels like there is something stuck in throat, with no barium swallow
or endoscopy abnormalities
What is a chocolate cyst associated with? - Answer: Endometriosis
,Most common site of endometriosis - Answer: Ovary
In a pregnant patient, what supplement is not necessary? - Answer: Vitamin A--> teratogenic
In a patient with the flu, what is the target of the medication? - Answer: Inhibition of virion
progeny release
Oseltamivir--> neuraminidase inhibitor
DNA fragments at 180 bp - Answer: Apoptosis
What drug inhibits smooth muscle contraction? - Answer: Atropine--> anti-cholinergic
Drugs that increase SM contraction? - Answer: Ach--> acts at nAchR's
Edrophonium
Phenylephrine
Propanolol
What is a SE of increased diazepam? - Answer: Anxiety, confusion, agitation
Patient with progressive confusion and agitation after chewing some plant seeds. He says that
bugs are crawling on his skin, he has trouble seeing, wants water. OD? - Answer: Atropine
toxicity
Two normal height adults have 2/3 kids with achondroplasia. There is no family history. Both of
the offspring are heterozygous for FGFR gene. Cause? - Answer: Germline mosaicism
, What cytokine is produced exclusively by lymphocytes? - Answer: IL-2
Cytokines produced by macrophages - Answer: IL-1, TNF-a, IFN-g, GM-CSF
What type of connections are see between cells? - Answer: Cadherins--> interact with
intermediate filaments
Adhesion in the BM - Answer: integrins
Cytoplasmic inclusion bodies - Answer: Poxvirus
Ballooning multinucleated giant cells - Answer: Herpes virus
Cells with enlarged nuclei and perinuclear halos - Answer: Verruca vulgaris
What stimulates the release of HCO3- into the duodenum? - Answer: Low pH of duodenal
content
What is injured with posterior displacement of the tibia relative to the femur? - Answer:
Popliteal artery
Endometritis - Answer: Infection of the uterus caused by retained tissue after pregnancy
What happens immediately after a ligand binds to an intrinsic tyrosine kinase R? - Answer:
Transient dimerization