MSK
Unit of muscle contraction, Z-line to Z-line
Sarcomere
What type of hypersensitivity reaction is poison ivy?
Type 4
What are the 2 main branches of the sciatic nerve?
Tibial and common peroneal (fibular)
What stage of sleep do you get sleep terrors?
N3
MOA of acyclovir
guanosine analog that competes w/ DGTP for viral DNA polymerase and will terminate DNA synthsis
What bone tumor is responsive to NSAIDs?
Osteoid osteoma
What enzyme is deficient in people with albinism?
Tyrosinase
What is the motor function of the superior gluteal nerve?
Abduction and flexion at the hip
Pt is unable to plantar flex but can stand on her tippy toes. However, the pt is not in pain and is unconcerned. What is wrong with her?
Conversion disorder
Which antidepressant can cause urinary retention?
TCAs (atropine-like side effects)
Decreased serum Ca2+
Decreased serum PO43-
Increased ALP
Increased PTH
Osteomalacia/rickets
Squamous cell carcinoma
You ask the patient to make a fist but the patient makes the "ok gesture" (4 and 5 digit remains straight)
Proximal ulnar nerve
What personality disorder would you see a past history of bed wetting?
Antisocial personality disorder
Which street drug causes nystagmus?
PCP!
What is the only bone tumor to arise in the epiphysis?
Giant cell tumor
Autoimmune destruction of hemidesmosomes?
Bullous Pemphigoid
The ________ nerve is responsible for the cremasteric reflex. Also, what is the nerve root?
Genitofemoral nerve; L1-L2
Which ego defense? - a man who wants to cheat on his wife accuses his wife of being unfaithful.
Projection
Xanthine oxidase degrades 6MP. Which drug increases toxicity of 6MP
Allopurinol/febuxostat
Hip and shoulder stiffness, elevated ESR and CRP, normal CK. No muscle weakness. What is wrong?
Polymyalgia rheumatica
Patients with BRAF V600E mutation may benefit from vemurafenib (BRAF kinase inhibitor). What is wrong with this patient?
Metastatic melanoma
What nerve would most likely be affected in the most common upper limb pediatric fracture?
Median nerve (supracondylar fracture of the humerus)
delusions, disorganized speech, and flat affect for 3 months.
Schizophreniform disorder
What neuro drug causes pancreatitis, hepatotoxicity, and alopecia?
Valproic acid