BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
CARDIOVASCULAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increased rate and increased force of contraction.
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decreased rate and increased force of contraction.
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decreased rate and decreased force of contraction.
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increased rate and decreased force of contraction.
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Detailed explanation-1: -Hyperkalemia can cause life-threatening heart rhythm changes, or cardiac arrhythmias. It can also cause paralysis and weakness.
Detailed explanation-2: -In hyperkalemia, the resting membrane potential becomes less negative, and hence fewer sodium channels are available. Consequently, there is a decrease in the rate of rise of phase 0 of action potential, known as Vmax, causing slowing of the rate of impulse conduction, as shown by the dashed line.
Detailed explanation-3: -Severe hyperkalemia can come on suddenly. It can cause life-threatening heart rhythm changes (arrhythmia) that cause a heart attack. Even mild hyperkalemia can damage your heart over time if you don’t get treatment.
Detailed explanation-4: -More serious symptoms of hyperkalemia can include a decrease in heart rate and weak pulse. Severe hyperkalemia can lead to heart stoppage and death.