Erythrocyte potassium levels uniquely reveal your total body potassium status. Potassium is an abundant mineral that helps keep normal water balance between the cells and body fluids. Muscle contractions, nerve impulses and blood pressure rely on availability of potassium.

Potassium is a primary intra-cellular element required for fluid balance, nerve activity and muscle activity.

Potassium (Plasma) is a vital electrolyte that helps regulate nerve signals, muscle contractions (including the heart), and fluid balance in the body. It plays a key role in maintaining healthy blood pressure and overall cellular function.

Normal Range:

3.4 – 4.8 mmol/L

What Do Abnormal Levels Mean?

• Low potassium (hypokalemia) can cause fatigue, muscle weakness, cramps, irregular heartbeat, and, in severe cases, life-threatening complications. It may result from fluid loss (vomiting, diarrhea), certain medications (like diuretics), or underlying health conditions.

• High potassium (hyperkalemia) may cause muscle weakness, numbness, or dangerous heart rhythm disturbances. It’s often linked to kidney issues, medications that affect potassium balance, or excessive potassium supplementation.

Since potassium levels are tightly regulated by the kidneys, even small imbalances can be clinically significant. If your potassium level falls outside the normal range, follow up with your healthcare provider to determine the cause and next steps.

Potassium is a vital mineral and electrolyte in the body, playing key roles in several critical body functions, such as regulating heartbeat, muscle function, and nerve signaling. In the context of medical testing the measurement of potassium in a random urine sample is significant. This test does not require any special preparation such as fasting and can be performed at any time, making it a convenient option for patients. In this panel, potassium levels are often analyzed alongside creatinine, a byproduct of muscle metabolism, to evaluate the potassium excretion relative to creatinine excretion. This ratio can help assess kidney function and the balance of electrolytes. High levels of potassium in the urine might indicate conditions like hyperaldosteronism (where the adrenal gland releases too much hormone), whereas low levels could suggest issues such as acute or chronic kidney disease, or excessive use of diuretics. The combined measurement with creatinine helps to adjust for variations in urine concentration, providing a more accurate picture of the body’s potassium release and retention, crucial for diagnosing and managing potential health concerns effectively.

Potassium, RBC (Red Blood Cell Potassium) measures the concentration of potassium inside your red blood cells, rather than in your blood plasma. While standard potassium tests assess levels in the fluid portion of the blood, this test gives insight into longer-term intracellular potassium status—which is where the majority of your body's potassium is actually stored.

What Is Potassium?

Potassium (chemical symbol K+) is an essential mineral and electrolyte found in every cell of your body. It plays a key role in:

• Helping nerves send signals

• Supporting muscle contractions, including the heartbeat

• Moving nutrients into cells and waste products out

• Maintaining a healthy fluid and electrolyte balance

As an electrolyte, potassium conducts electrical impulses when dissolved in body fluids. This electrical activity is vital for normal muscle, nerve, and heart function.

Potassium is an electrolyte that helps your cells and organs work. Your body needs it to digest food, keep your heart beating right, and various other activities. You get most of your potassium from foods. Your body uses what it needs, and your kidneys put the rest into your urine as waste.

The "Potassium/Creatinine Ratio" marker is a crucial diagnostic tool used to evaluate the balance of potassium in your urine relative to creatinine. Potassium, an essential mineral, is vital for proper cell function, including maintaining normal heart function and regulating fluid balance. Creatinine, a waste product generated from muscle metabolism, is typically used as a reference marker because its excretion rate in urine is relatively stable. The ratio between potassium and creatinine helps to normalize potassium levels against urine concentration variations, providing a more accurate assessment of potassium excretion from the body. This measurement is particularly important in diagnosing and monitoring conditions related to electrolyte imbalance, kidney function, and certain hormonal disorders. It helps doctors understand how well the kidneys are processing potassium and whether there might be excessive loss or retention of potassium, which can have significant health implications. Thus, this test is a vital part of understanding overall kidney health and managing conditions that affect electrolyte balance.

The presence of antibodies to Potato is an indication of food immune reactivity. The offending food and its known cross-reactive foods should be eliminated from the diet. Adverse reactions to Potato have been reported. Immune reactivity to Potato is rare and occurs more often in children, who usually out-grow it, than in adults.

The prealbumin screen is a blood test that may be used to see if you are getting enough nutrition in your diet. This may be because you have a chronic condition. Or it may be because you have an infection or inflammation, or you suffered a trauma. 

Prealbumin is a protein that is made mainly by your liver. Your body uses it to make other proteins. Prealbumin also carries thyroid hormones in the blood

Evaluate protein malnutrition, total parenteral nutrition, and liver dysfunction. Values are decreased in inflammatory processes, malignancy, protein malnutrition, and protein wasting diseases of the gut or kidney. Values are increased in Hodgkin's disease.

What is Pre-Beta-1 HDL?

Pre-Beta-1 HDL, often referred to as Pre-b-1 HDL, is a distinct form of High-Density Lipoprotein (HDL), commonly known as "good cholesterol." This specific type of HDL is unique because it is the smallest and most compact form, serving as the starting point in the development of HDL particles. Pre-b-1 HDL plays a vital role in the reverse cholesterol transport process, where it collects excess cholesterol from your body's tissues and transports it back to the liver for removal. This process is crucial for maintaining the health of your heart and blood vessels. Essentially, Pre-b-1 HDL functions like a diligent cleaner, continually picking up and eliminating unwanted cholesterol from your body. Understanding the importance of Pre-b-1 HDL can help in managing cholesterol levels and promoting cardiovascular health.

Precoproporphyrin I is an atypical porphyrin formed when the heme pathway is under stress or when porphyrin metabolism becomes disrupted. It is not normally produced in significant amounts and can rise in response to metabolic strain or certain environmental exposures.

Precoproporphyrin II is an atypical porphyrin formed outside the usual heme synthesis pathway. It is measured to help identify stress in porphyrin metabolism, metabolic imbalance, or environmental exposures that can interfere with heme production.

Precoproporphyrin III is a non-standard porphyrin metabolite that may appear when the heme synthesis pathway is disrupted. Its levels can reflect metabolic stress, oxidative burden, or environmental exposures that interfere with porphyrin metabolism.