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A 47 year old teacher goes to her physician complaining of dizziness, fainting, and shortness of breath. She appears pale and chronically ill. Her heart rate is 70/min supine and 68/min sitting and standing. Her blood pressure is 120/74 supine, 98/54 sitting, and 84/48 standing. Heart sounds and lung sounds are normal. Her abdominal exam and her general neurologic exam are both normal. Routine lab exams are normal.
A. Identify any abnormal data in the description of this patient.?
Several studies were performed to evaluate the patient's circulatory control mechanisms. She was placed on a tilt table which allows rapid changes in the patient's orientation. Her blood pressure while supine was 102/60. She was then tilted to a 45º heads-up position and her blood pressure fell to 70/35. There was no change in her heart rate when tilted.
B. What possible mechanisms could account for this result?
A young mother is encouraging her son to try another bite of a disliked food. The child is quietly whining, but when the mother spreads the food around to cool it, the child becomes hysterical. Why did child become so upset? Recognize the cognitive s..
Draw a ball and stick figure representation of 10 molecules of phospholipids floating on the surface of salt water. Label the polar and nonpolar parts.
Which of the following is NOT a cis-acting sequence.
Explain how DNA is responsible for protein structure, both in prokaryotes and eukaryotes. provide your answer.
An oak tree will produce thousands of acorns that are buried or eaten by squirrels. Explain why would the tre require to make so many a corns? why might a plant whose seeds disperse far from the parent
What are the effect of discharging primary treated sewage on the biochemical oxygen demand (BOD) and dissolved O2 (DO) of the receiving body of water? What is the effect of a secondary treated sewage on the BOD and DO.
You have a constitutive mutant, but you are not sure if it is constitutive due to a repressor mutation (i-) or an operator mutation (o^c). What would be a good experiment to determine whether the phenotype is due to a defective repressor (i-) or t..
You are studying a mutant neurofilament protein in mice that lacks the large carboxyl terminal domain characteristic of this intermediate filament protein.
The stimulus for secretion of neurotransmitters into the synaptic cleft is an increase in?
the scenario: Zoologists monitoring the wild Siberian tiger population have determined the current number of while-furred tigers to be 5% of the remaining 1,500 Siberian tigers.
Determine the role the innate and adaptive immune system in controlling cancer formation and progression and compare and contrast the tumor promoting and inhibitory capabilities of the immune system.
phenylalanine medium sometimes is prepared in broth form with a pH indicator simiar to that used in decarboxylase medium so that increases in pH then can be detected by development of purple color. when testing an organism for the ability to deami..
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