Renal Blood Test High Potassium. This falsely raises the amount of potassium in the blood sample even though the potassium level in your body is actually normal. The test is performed to identifyconcentrations of potassium that are too high hyperkalaemia or too low hypokalaemia.
When this is suspected a repeat blood sample is done. At extremely high or low levels abnormal blood potassium can cause a heart attack. The test is performed to identifyconcentrations of potassium that are too high hyperkalaemia or too low hypokalaemia.
Low potassium can cause muscle cramps.
If your blood potassium level is too high hyperkalemia it could indicate that your kidneys aren t working properly and can change the rhythm of your heart beat. It can cause serious heart problems and sudden death 1 3 there are often no warning signs meaning a person can have high potassium without knowing it 4 if symptoms do occur they are often nonspecific such as heart palpitations nausea weakness or. When you have too much potassium in your blood it is called high potassium or hyperkalemia. The test also measures the level of certain salts such as potassium chloride sodium and bicarbonate.