1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vedmedyk [2.9K]
3 years ago
15

The EKG is hooked up, and Mr. M's trace looks very abnormal. His heart rate is low. The T wave, which indicates repolarization o

f the ventricles, is unusually large and pointed and the QRS wave, which indicates the depolarization impulse’s passage through the ventricles, is widened or slowed. "That's a classic EKG for hyperkalemia (high blood potassium)!" The doctor gives Mr. M an injection of calcium gluconate. Calcium ions block the Na+ channels on nerve and muscle cells. How will this help counteract the effects of high blood K+? g
Biology
1 answer:
azamat3 years ago
6 0

Answer:

This question lacks options, options are: Mr. M's cells are depolarizing too easily. Blocking Nat channels will make it harder for them to depolarize, bringing their sensitivity back to normal O Mr. M has too little K* leaving his cells, so we need to block the Nat channels so the Kt channels can stay open and his cells can repolarize properly. Mr. M has too little K* leaving his cells, so we need to block the Nat channels so the Na /K+ ATPase can move Kt out of the cell effectively O Blocking Na* channels cannot help- it will only make his cells fire less, and he already has a weak heartbeat. Mr. M's cells are not repolarizing properly. Blocking Nat channels will help them repolarize normally, bringing their resting potential back to normal.

The correct answer is ''Mr. M's cells are depolarizing too easily. Blocking Na+ channels will make it harder for them to depolarize, bringing their sensitivity back to normal.''

Explanation:

Calcium administration is an emerging treatment modality aimed at restoring the transmembrane electrical gradient of cardiac myocytes. It probably achieves this goal by reducing the resting membrane potential of cells. Calcium antagonizes the effect of hyperkalemia on cardiac conduction, that is, it antagonizes the effects of K on the heart. Its onset of action is immediate, in a few minutes. Calcium gluconate antagonizes the excitability of the cardiac membrane, that is, it decreases the excitability of the membrane and it does not affect serum levels, it is generally accepted that calcium should be administered when there are ECG changes associated with hyperkalemia.

You might be interested in
Ailani age 3 is lactose intolerant and unable to drink milk or to eat dairy products. what nutrients is most likely deficient in
svetlana [45]
Calcium. Almonds, broccoli, oranges, kale
8 0
3 years ago
Read 2 more answers
Humans depend on soil, minerals, and rock. True or False?
Vlad [161]

Answer:

true

Explanation:

soil=plants humans need these for food

minerals= help body growth

rock= home base of minerals and used for homes sometimes

3 0
3 years ago
how does understanding the organization of the body, the urinary, and digestive systems help your career?
mestny [16]
If you were to go in the career cluster of healthcare (medical), you would be able to assist your patients' needs better, understand what is really going on in their bodies, and give them suggestions for improving their overall health. Hope this helps. :D. Let me know if you have any questions about my explanations and feel free to ask more questions.
7 0
3 years ago
which row in the chart below best describes the active transport of molecule X through the cell membrane
nydimaria [60]

Answer:

Cheating on your home work

Explanation:

Smh ‍♀️ I’m calling the school

4 0
3 years ago
Read 2 more answers
The main function of the central nervous system is to
Afina-wow [57]
The answer is process information from stimuli and respond.
5 0
2 years ago
Read 2 more answers
Other questions:
  • In this activity, you will follow oxygen on its path from the lungs to the body tissues.to review how oxygen is transported in t
    9·1 answer
  • What kind of scientific investigations do not involve observations
    13·1 answer
  • Lungs
    6·1 answer
  • Americans spend up to $100 billion annually for bottled water (41 billion gallons). The only beverages with higher sales are car
    13·1 answer
  • SOMEONE PLZ ANSWER ASAP!!!!
    6·1 answer
  • Which of the following best describes chemical weathering? I need this ASAP
    10·2 answers
  • The cell membrane functions most like a(n)
    13·1 answer
  • What happens to the cell membrane that the result is two daughter cells
    8·1 answer
  • A doctor prescribes a blood thinner to a patient with high blood pressure. What
    5·1 answer
  • Which organelle is labeled H?<br> cell membrane<br> cell wall<br> endoplasmic reticulum<br> nucleus
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!