The total number of 02 molecules that can be carried by one red blood cell is about a: O One hundred (100) 02 molecules One thousand (1000) 02 molecules One million (1000,000) 02 molecules One billion (1000,000,000) 02 molecules

Following a motor vehicle accident, a patient is rushed to the emergency department with multiple traumatic injuries, causing severe bleeding. The patients condition is critical, and there is no time for determining his blood type. What type of blood is transfused, and why?

Which of the following statements about blood is true? Blood is about 92 percent water. Blood is slightly more acidic than water. Blood is slightly more viscous than water. Blood is slightly more salty than seawater.

Hemophilia is characterized by ________. inadequate production of heparin inadequate production of clotting factors excessive production of fibrinogen excessive production of platelets

Which explanation best describes why plasma proteins can function as buffers? Plasma proteins combine with bicarbonate to make a stronger buffer. Plasma proteins are immune to damage horn acids. Proteins have both positive and negative charges on their surface. Proteins are alkaline.

Nifedipine is an antihypertension medication that is also used to reduce the workload on the heart. The study below compares the effects of two different types of capsules used to administer the drug to patients (GITSred line, and Cotracten Xblue line). Each graph shows changes with time following initial administra- tion of the capsules. Figure A compares the levels of nifedipine in the blood with each capsule type. The ability of the different cap- sules to reduce workload on the heart by altering blood pressure or heart rate is shown in Figures B and C, respectively. Are elevated plasma levels of nifedipine(above 10 ng/mL) required for the drug to perform its actions? Source: M. J. Brown and C. B. Toal. 2008. Formulation of long-acting nifedipine tablets influences the heart rate and sympathetic nervous system response in hypertensive patients. British Journal of Clinical Pharmacology 65:646652.