Data Trace Editor – Discussion: – preganglionic lesions represent root avulsions from the spinal cord; – 2 catagories: – central avulsions: nervs are avulsed directly from the spinal cord; – intradural ruptures: rootlets are ruptured proximal to the dorsal root ganglion; – preganglionic injuries … Read more
– maintenance of adequate preload is fundamental in the postoperative management of cardiac surgical patients; – it has been stated that the optimal wedge pressure is in the range of 14-18 mm Hg, although this may not be necessary in many pts and may be insufficient in others; – in addition the CVP should be … Read more
– See: Hypoplastic Thumb: – Discussion: – a rudimentary thumb w/ no or very little metacarpal & no or very few muscles is categorized as a floating thumb. – such a floating thumb may have all assoc. abnormalities & syndromes of true hypoplastic thumb and the absent thumb. – Radiographs: – … Read more
for anxiety disorders; Benzodiazepine related to chlordiazepoxide; Adult: 5-10mg PO 3 or 4 times qd; 20-50mg PO as single bed time dose to minimize daytime drowsiness; CNS depressant activity may make some activities requiring concentration dangerous for patients (driving); Note that this drug designed for slow conversion to active product, peak: 4-12hr after dose; Note … Read more
– Discussion: – for HTN; – Alpha blocker with some direct smooth muscle relaxation: – Dosing: – Initial: 1mg PO bid to tid (watch out for syncope); – Maintenance dose: 6-15 mg/day given in 2-3 divided doses; – Maximun daily dose: 20 mg/day; – Precautions: – syncope may occur w/ dose > 2 mg; – … Read more
– 2-7 days before surgery; – w/ spirometry, measure the response with bronchodilators; – w/ thoracic surgery: FEV1 < 50% = high risk – w/ peripheral surgery FEV1 < 30% = high risk – FEV1/FVC ratio of less than 0.5 – pCO2 > 45 (and patient is not receiving meds that decrease ventilation abdominal or … Read more
– Discussion: – pretendinous bands arise from the palmar fascia as strips of tissue which extend toward the bases of the digits; – the neurovascular bundle will lie on either side of the pre-tendinous bands; – at a point distal to the distal palmar crease, the … Read more
– Discussion: – is apparent when with stress testing lateral tibial plateau rotates posteriorly in relation to the femur with lateral opening of joint; – atraumatic type: – presents as chronic laxity, often with a varus knee deformity; – this ligamentous laxity often … Read more
– Discussion: – unlike anterolateral bowing, this disorder is not assoc w/ other anomalies (like neurofibromatosis) nor is it associated w/ tibial frxs or pseudarthrosis, such as congenital pseudarthrosis of tibia; – clinical findings: – posteromedial bowing – calcaneal valgus … Read more
– Discussion: – posterior splint for 10 days in maximum equinus to reduce tension on the incision; – cam walker w/ 15 deg of equinus (or gravity equinus), non wt bearing; – pts are permitted non wt bearing ankle ROM exercises out of the … Read more