How are potassium and sodium transported across plasma
membranes?
Answer
1 out of 1 points
Selected
Answer:
Correct
Answer:
c.
By adenosine
... [Show More] triphosphate enzyme
(ATPase)
c.
By adenosine triphosphate enzyme
(ATPase)
• Question 2
The ion transporter that moves Na
+
and Ca
2+
simultaneously in the
same direction is an example of which of the following types of
transport?
Answer
0 out of 1 points
Selected
Answer:
Correct
Answer:
b.
Unipor
t
d.
Symp
ort
• Question 3
An aide asks the nurse why people who have neurofibromatosis will
0 out of 1 points
show varying degrees of the disease. Which genetic principle should
the nurse explain to the aide?
Answer
Selected
Answer:
Correct
Answer:
a.
Penetran
ce
b.
Expressiv
ity
• Question 4
0 out of 1 points
A cell is isolated, and electrophysiology studies reveal that the resting
membrane potential is ?70 millivolts. The predominant intracellular
ion is Na+, and the predominant extracellular ion is K
+
. With voltage
change, which of the following would result in an action potential?
Answer
Selected
Answer:
Correct
Answer:
a.
K
+
rushing into the
cell
b.
Na
+
rushing into
the cell
• Question 5
1 out of 1 points
When a patient asks what causes cystic fibrosis, how should the nurse
respond? Cystic fibrosis is caused by an gene.
Answer
Selected
Answer:
Correct
Answer:
d.
Autosomal
recessive
d.
Autosomal
recessive
• Question 6
What is the diagnosis of a 13-year-old female who has a karyotype
1 out of 1 points
that reveals an absent homologous X chromosome with only a single
X chromosome present? Her features include a short stature, widely
spaced nipples, reduced carrying angle at the elbow, and sparse body
hair.
Answer
Selected
Answer:
Correct
Answer:
c.
Turner
syndrome
c.
Turner
syndrome
• Question 7
1 out of 1 points
A nurse is reviewing the pedigree chart. When checking for a proband,
what is the nurse looking for?
Answer
Selected
Answer:
Correct
Answer:
a.
The person who is first diagnosed with a
genetic disease
a.
The person who is first diagnosed with a
genetic disease
• Question 8
The nurse would be correct in identifying the predominant
extracellular cation as:
Answer
1 out of 1 points
Selected
Answer:
Correct
Answer:
a.
Sodiu
m
a.
Sodiu
m
• Question 9
0 out of 1 points
A 13-year-old girl has a karyotype that reveals an absent homologous
X chromosome with only a single X chromosome present. What
medical diagnosis will the nurse observe on the chart?
Answer
Selected
Answer:
Correct
Answer:
a.
Down
syndrome
c.
Turner
syndrome
• Question 10
A patient who has diarrhea receives a hypertonic saline solution
intravenously to replace the sodium and chloride lost in the stool.
What effect will this fluid replacement have on cells?
Answer
0 out of 1 points
Selected
Answer:
Correct
Answer:
a.
Cells will become
hydrated.
c.
Cells will shrink. [Show Less]