Some help with the following would be really appreciated as I'm 4 days out from test day:
1. 20 subjects participate in a study of ardiopulmonary physiology. The pulmonary circulation of these subjects most likely has which fof the following characeteristscs compared w/ their bronchial circulation?
a) greater number of branches supplying the visceral pleura
b) larger number of asntomoses w/ interecostal arteries
c) larger percentrage of cardiac output
d) larger volume of nutrient blood to the conducting airways (WRONG
)
e) lower volume, higher pressure system
2. 10 yr old boy who has had T1DM for 1 year is receiving insulin. One hour after his morning dose of insulin he becomes tremulous and diaphroetic and has tachycardia. Several hours later his symptoms resolve. His blood glucose concentration is now increased. Which of the following is the most likely cause of this patient's hyperglycemia?
a) activation of hepatic adenylyl cyclase
b) activation of muscle glycogen synthase
c) activation of muscle phosphorylase (WRONG
)
d) activation of muscle protein phosphatase
e) inhibition of hepatic protein kinase A
3. A study is conducted to evaluate the onset and course of cardiovascular disease in African American men and women in the USA. Census data from the year 2000 are used to select the study sample. A series of factors including family income and years of education is defined. Census tracts most representative of the national census data for the factors selected are used for sampling. Which of the following best describes this sampling technique?
a) blocked randomization
b) population-based
c) sample of convenience (WRONG
)
d) self-selection
e) sequential
4. A 33 year old woman who is right-handed is brought to the physician because of a 3-day history of progressive weakness and numbness of her arms and legs. Neurologic examination shows proximal and distal weakness of the upper and lower extremities. There is areflexia. Sensation to vibration and joint position is decreased in the fingers and toes. Nerve conduction studies show a slow conduction velocity in the median, ulnar, peroneal, and tibial nerves. These electrophysiologic findings most likely indicate impaired function of which of the following ion channels?
a) neurotransmitter-gated Ca+2 channels
b) neurotransmitter-gated Na+ channels
c) neurotransmitter-gated K+ channels (WRONG
)
d) Voltage-gated Ca+2 channels
e) Voltage-gated Na+ channels
f) Voltage-gated K+ channels
5. Too long to write out but it was a question w/ kid w/ Duchenne's and asked which insertion point for adduction?
a) anterior sacrum
b) iliac crest (WRONG
)
c) iliac spine
d) ischium
e) lateral ilium
6. The calculation question for Loading Dose: I just did Vd x Cp x 33 kg (55kg x .6 for TBW)
---I picked 100 but it was wrong
7. The question about the 2 hour 75 g of oral glucose and the up and down arrows for triglycerides, HDL-cholesterol, free fatty acids. What was the answer?
THANK YOU ALL VERY MUCH