A 10-year-old female patient with primary pulmonary hypertension is receiving nitric oxide (NO) therapy for its vasodilatation properties
She presents with a deficiency in O2 carrying capacity with the hemoglobin iron molecule in the ferric acid state and a methemoglobin level of 10%. She most likely has a condition known as:
A. sickle cell disease
B. anemia
C. methemoglobinemia
D. hypoxic shock
E. restrictive lung disease
ANS: C
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In response to high blood glucose, the pancreas releases insulin to enable glucose to enter body cells. When the blood glucose level returns to normal, insulin release stops. This is an example of regulation by
A. endocrine dysplasia. B. negative feedback. C. positive feedback. D. neural regulation. E. somatic regulation.
Edema is the accumulation of excess fluid in a tissue.
Indicate whether the statement is true or false
Which chemical buffer system includes carbonic acid and its salt and ties up hydrogen ions (H+) released by strong acids?
A) phosphate buffer system B) protein buffer system C) ionic buffer system D) bicarbonate buffer system E) acid-base buffer system
Which of the following pairs are NOT related?
a. leak channels and nongated channels b. gated channels and triggering event c. chemically gated channels and ligand gated channels d. mechanically gated channel and stretch activated channels e. graded potentials and leak channels