Power-horse Library

pharmacokinetics - Answer what the body does to the drug Pharmacodynamics - Answer what the drug does to the body upregulation - Answer increase density of receptors chronic decrease in receptor stimulation ex. chronic use of beta-blockers increases the number of B-receptors downregulation - Answer decrease density of receptors caused by a chronic increase in receptor activation ex. chronic treatment of asthma with albuterol (beta 2 agonist) reduces the number of B-receptors wh...

What are cannulation sites for an LVAD? - Answer Pulmonary Vein and Aorta What is the minimum pressure for an LVAD inflow, before you are at risk for drawing air? - Answer 5 mmHg Correction for cannula entrapment in LVAD's can be accomplished by doing what? - Answer increasing the left atrial preload (decreasing flow) --> Cannula is sucking down in the LVAD inflow either in the pulm vein, lv apex, or just below crossing the aortic valve. What is the indication that indicates to add...

In 55% of patients, which coronary artery gives rise to blood supply for the S-A Node? A. right. B. circumflex. C. posterior descending. D. obtuse marginal. - Answer A Which of the following is a reported disadvantage of cerebral saturation monitoring using Near Infrared Spectroscopy (NIRS) Technology: A. Global ischemic events are not reflected in the measurements. B. Pulsatile perfusion pressure is required for accurate measurements. C. Catheter placement is required for continuous m...

What good substances cross the placental membrane? - Answer O2, CO2, H2O, bilirubin, maternal serum proteins, RBc, IgG, IgA What harmful substances cross the placental membrane? - Answer 1) viruses: rubella, HIV, measles, oral conraception, WARFARIN, DILANTIN, Xanax, cocaine, heroin, RH-antibodies What does not cross the placental membrane? - Answer maternal chplesterol, Insulin, Succinylcholine, HEPARIN, bacteria Which vessel supplies blood to the fetus? - Answer umbilical vein Whic...

The major cation found in extracellular fluid is: - Answer Sodium (Na) The primary structural units of proteins are: - Answer L-amino acids Which clotting factor is activated by contact with foreign surfaces, roughened vascular walls, and platelet aggregates? - Answer 12 - Hageman (X11) The effect of plasmin is to: - Answer Limit clotting by splitting fibrin The normal arterio-venous oxygen difference is approximately: - Answer 5 volumes percent Oxygen delivery will be decreased w...

The major cation found in extracellular fluid is? a) K+ b) Ca++ c) Mg++ d) Na+ - Answer d) Na+ Oxygen delivery will be decreased when a low venous oxygen tension and high venous oxyhemoglobin saturation are present due to: a) increase in P50 b) decrease in P50 c) metabolic alkalosis d) metabolic acidosis - Answer c) metabolic alkalosis At a given PO2, increasing PCO2 results in: a) more O2 bound to the hemoglobin b) less O2 bound to hemoglobin c) no effect on amt of O2 bound to hemo...

c.The most common type of anomalous venous return is: a. supracardiac b. cardiac infracardiac d. cardiac - Answer a A Pott's operation is an anastomosis of the: a. ascending aorta to the left pulmonary artery b. descending aorta to the pulmonary artery branch c. subclavian artery to the pulmonary artery branch d. ascending aorta to the subclavian artery - Answer a The basic hemodynamic fault in a patent ductus arteriosus is a ____ -to- _____ shunt at the pulmonary artery leve...

The advantage of continuous warm blood cardioplegia is: A: increased oxygen delivery B: significantly decreased myocardial oxygen tension C: a shift of the oxygen dissociation curve to the left D: lower myocardial oxygen consumption - Answer A IABP augmentation is contraindicated in patients with: A: prosthetic aortic valves B: aortic insufficiency C: VSDs D: peripheral atherosclerosis - Answer B When using a roller pump. aortic dissection caused by the aortic cannula may be de...

An advantage of continuous warm blood cardioplegia is: A. Increased oxygen delivery B. Significantly decreased myocardial oxygen tension. C. A shift of the oxygen dissociation curve to the left. D. Lower myocardial oxygen consumption - Answer increased oxygen delivery Intra-aortic ballon augmentation is contraindicated in patients with: A. prosthetic aortic valves B. aortic insufficiency C. ventricular septal defects D. peripheral atherosclerosis - Answer aortic insufficiency W...

An advantage of continuous warm blood cardioplegia is - Answer Increased oxygen delivery Intra-aortic balloon augmentation is contraindicated in pts with - Answer Aortic insufficiency When using a roller pump, aortic dissection caused by the aortic cannula may be detected by - Answer Elevated arterial line pressure The most significant advantage of venovenous ECMO over venoarterial ECMO is - Answer Unaffected pulmonary hemodynamics The rate of water extraction using an ultrafiltratio...