A drug that blocks the muscarinic receptors in the peripheral nervous system would be classified as a:

A colleague generates a best-fit line through a set of data points and asks you to confirm its usefulness and goodness-of-fit. You perform a root-mean-squared-error (RMSE) calculation and come up with a very small RMSE value

Based on this value you determine that the best-fit line A) deviates far from the data points. B) fits the data well. C) is useless for interpolation but valid for extrapolation. D) predicts a value that is too far from the actual value.

A premature infant has two pulse oximeters placed: one on the right hand and one on the left foot. The respiratory therapist notes that the reading on the right hand is consistently 12% greater than the reading on the left foot

Which of the following is the best interpretation of this finding? a. The infant has left-sided intra-pulmonary shunting. b. The infant likely has pneumonia. c. The infant is in septic shock with systemic capillary shunting. d. The infant has persistent pulmonary hypertension of the newborn. e. The infant has shunting across the ductus venosus.