Author Question: A clinical nurse educator on a nephrology and dialysis unit is reviewing renal physiology with a ... (Read 48 times)

ENagel · **on:** Jul 23, 2018

A clinical nurse educator on a nephrology and dialysis unit is reviewing renal physiology with a nursing student who is completing a preceptorship on the unit.

The student should be aware that a majority of reabsorption takes place in what anatomical location? A) Ureters
B) Proximal tubule
C) Efferent arteriole
D) Afferent arteriole

Question 2

An emergency department nurse enters a patient's room with an order to administer epinephrine subcutaneously to treat his asthma attack. The patient's wife asks the nurse why it could not be given by mouth.

Which of the following is the best response by the nurse? A) The medication he is to receive is only given by an injection in the arm.
B) The medication is administered this way because it works faster than by mouth.
C) The medication is given many ways, but this is the way it was ordered.
D) The medication will not absorb in the GI tract if given by mouth.

yasmina · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

B
Feedback:
Most reabsorption occurs in the proximal tubule. Almost all glucose and amino acids are reabsorbed; about 80 of water, sodium, potassium, chloride, and most other substances is reabsorbed. Arterial blood enters the glomerulus by the afferent arteriole, and blood that does not become part of the glomerular filtrate leaves the glomerulus through the efferent arteriole. The ureters connect the kidneys to the bladder.

Answer to Question 2

D
Feedback:
Epinephrine is not given orally because enzymes in the GI tract and liver destroy it. The medication can be given through inhalation, intravenously, and subcutaneously. The medication will work more quickly in a parenteral form but is not given orally. Stating to the patient that this method is the way the physician ordered it to be given will belittle the patient and not provide adequate patient teaching.