Data Trace Editor – Discussion: – pts knee is acutely and forcibly flexed; – to check the medial meniscus examiner palpates posteromedial margin of joint with one hand while grasping the foot w/ other hand; – keeping the knee completely flexed, the leg is externally rotated as far as possible and then the knee … Read more
Male 80-94 fL; Female 81-99 fL; Increased: Megaloblastic anemia (B12, Folate), Macrocytic anemia, Reticulocytosis, Down’s syndrome, Chronic Liver dz, ETOH; Decreased: Iron Deficiency Anemia, Thalassemia, occassionally w/ Lead poisoning
– See: clotting cascade – Prothrombin Time (PT) 11.5-13.5 sec – PT is used to evaluate extrinsic clotting mechanism: I, II, V, VII, X; – Prolonged: – coumadin; – vit K deficiency; – fat malabsorption – liver dz – Partial Thromboplastin TIME (PTT) 27-38 sec; – tests intrinsic & common coag pathways (XII, XI, IX, … Read more
– Discussion: – mechanical axis refers to the angle formed by a line drawn from the center of the femoral head to the medial tibial spine and a line drawn from the medial tibial spine and the center of the ankle joint; – this should not be confused w/ the wt … Read more
– See: Biomechanical Role: – Discussion: – ACL tears most often occur during football and basketball in younger patients, and occur most often from skiing injuries in older patients; – substantial anterior tibial shear forces that stress ACL are produced from quadriceps contraction, esp in 0-30 deg of extension; … Read more
– Discussion: – involves vertical loading of calcaneus by talus at crucial angle of Gissane; – usually occurs from a fall from ht landing on heels; – primary fracture line may take one of three paths: – lateral to posterior facet (from impact on pronated foot) – thru posterior facet (neutral foot position) – secondary … Read more
– See: – Isocarboxazid/Marplan – Tranylcypromine/Parnate – Phenelzine/Nardil – Discussion: – can potentiate the depressive effects of narcotics; – can cause fever and seizures when administered to a patient receiving MAOI; – the pressor effect of indirectly acting agents such … Read more
Discussion older names include dolichostenomelia (Greek for long, narrow limbs) and dystrophia mesodermalis congenital, typus Marfanis; inherited as an autosomal dominant trait with variable expressivity. characterized by long, thin limbs and by laxity of ligaments; Pathophysiology dz of collagen synthesis (possibly the alpha subunit) may have abnormal production of collagen type I (and ? type … Read more
– Discussion: – motor nerve may cross over from the median to ulnar nerve in the forearm; (motor connections but not sensory connections); – it occurs in two patterns: – from median nerve in proximal forearm to ulnar nerve in middle to distal third of forearm, & from AIN to … Read more