Comprehensive Metabolic Panel (CMP) Without ALT
It checks kidney function, electrolytes, blood sugar, proteins, and liver-related markers (without ALT) with convenient ordering and Quest draw access via Vitals Vault.
This panel bundles multiple biomarker tests in one order—your report explains how results fit together.
A Comprehensive Metabolic Panel (CMP) is one of the most common blood panels because it gives a fast, practical snapshot of hydration and electrolyte balance, kidney filtration, blood sugar, and several protein and liver-related markers.
A “CMP without ALT” is the same idea, but it excludes alanine aminotransferase (ALT), an enzyme often used to screen for liver cell injury. This version can be useful when ALT is not needed, has been recently checked, or you and your clinician are focusing on kidney/electrolytes and metabolic status.
Because it is a panel, you do not interpret it as one single number. You look for patterns—like dehydration affecting sodium and BUN, or kidney stress affecting creatinine and potassium—then confirm with symptoms, medications, and follow-up testing when needed.
Do I need a Comprehensive Metabolic Panel Without ALT test?
You might consider a CMP without ALT if you want a broad check of electrolytes, kidney function, and metabolic status, especially when you have symptoms like unusual fatigue, muscle cramps, lightheadedness, swelling, increased thirst or urination, nausea, or appetite changes. It is also commonly used when you are monitoring a chronic condition such as high blood pressure, diabetes or prediabetes, kidney disease, or when you are adjusting medications that can affect electrolytes or kidney filtration.
This panel can also be helpful before procedures, during routine annual labs, or after an illness that could affect hydration and kidney function (for example, vomiting, diarrhea, or a significant change in fluid intake). If you are specifically worried about liver inflammation or medication-related liver injury, you usually want ALT included, or you may need a broader liver-focused panel.
Your results are most useful when you compare them with your symptoms, your medical history, and prior labs. This test supports clinician-directed care and shared decision-making; it cannot diagnose a condition by itself.
This panel is run in CLIA-certified laboratories; results should be interpreted with your clinician because medications, hydration, and acute illness can shift values without indicating a new diagnosis.
Lab testing
Order labs to measure Comprehensive Metabolic Panel without ALT
from $14.99 at Quest Diagnostics
About 1 week
Schedule online — results typically within a week
Clear next steps
Guidance included, with follow-up care available
HSA / FSA
Eligible for pre-tax health spending accounts
Get this test with Vitals Vault
Vitals Vault lets you order a Comprehensive Metabolic Panel without ALT directly, so you can check key metabolic and kidney markers on your schedule and bring the results to your clinician.
After your results post, PocketMD can help you understand what each marker generally reflects, what patterns are worth a follow-up conversation, and which companion tests are commonly paired based on your goals (for example, A1c for longer-term glucose trends or a urine albumin/creatinine ratio for kidney risk).
If you are tracking a change—like a new blood pressure medication, a nutrition plan, or recovery after an illness—Vitals Vault makes it easy to repeat the same panel so you can compare trends rather than guessing from one isolated result.
- Order online and choose a convenient lab draw location
- PocketMD guidance to help you prepare questions for your clinician
- Designed for trend tracking across repeat tests
Key benefits of Comprehensive Metabolic Panel Without ALT testing
- Checks electrolyte balance (sodium, potassium, chloride, CO2) that can affect energy, muscle function, and heart rhythm.
- Screens kidney filtration and hydration patterns using BUN and creatinine together.
- Measures blood glucose to flag possible hypoglycemia, prediabetes, or diabetes patterns that deserve follow-up.
- Assesses calcium and protein status (albumin/total protein) that can shift with nutrition, inflammation, or fluid balance.
- Includes bilirubin and alkaline phosphatase to provide liver and bile-duct context even though ALT is excluded.
- Helps you and your clinician interpret medication effects (diuretics, ACE inhibitors/ARBs, NSAIDs, supplements) on electrolytes and kidney markers.
- Creates a baseline you can retest against after illness, lifestyle changes, or treatment adjustments.
What is a Comprehensive Metabolic Panel Without ALT?
A Comprehensive Metabolic Panel (CMP) is a group of blood tests reported together because the markers are commonly interpreted as a set. A CMP without ALT keeps the core metabolic, electrolyte, kidney, protein, and several liver-related markers, but it does not include alanine aminotransferase (ALT).
You can think of this panel as answering a few practical questions at once: Are your electrolytes in a safe range? Are you retaining or losing fluid? Are your kidneys filtering normally for you? Is your blood sugar elevated or low today? Are your blood proteins and calcium consistent with your overall health and hydration?
ALT is often used to detect liver cell injury. When ALT is intentionally excluded, the panel is less targeted for detecting certain types of liver inflammation. However, other included markers—such as alkaline phosphatase and bilirubin—can still provide useful context about bile flow and red blood cell breakdown.
Because many CMP markers move together, interpretation usually focuses on patterns (for example, dehydration can raise BUN and albumin, while kidney impairment may raise creatinine and potassium).
Why ALT might be left out
ALT is not always necessary for the question you are trying to answer. If you recently had ALT checked, if you are monitoring kidney function and electrolytes more closely than liver enzymes, or if you are following a clinician’s specific lab plan, a CMP without ALT can be a streamlined option.
What this panel is best at
This panel is especially good for monitoring hydration and electrolyte status, kidney filtration trends, and day-of-test glucose. It is also a common baseline panel before medication changes or when you want a broad “systems check” without ordering many separate tests.
What do my Comprehensive Metabolic Panel Without ALT results mean?
Low results (below range) on a CMP without ALT
Low values often point to dilution, reduced intake, or losses. For example, low sodium can occur with excess water intake, certain medications, or hormone-related causes, while low potassium can happen with vomiting/diarrhea or diuretic use. Low albumin or total protein can reflect poor intake, malabsorption, inflammation, or fluid overload, but it can also be temporary during illness. If glucose is low, your clinician may ask about fasting duration, diabetes medications, alcohol intake, and symptoms like shakiness or sweating.
In-range (optimal) results on a CMP without ALT
In-range results usually mean your electrolytes and kidney filtration markers are stable at the time of the draw, and your proteins and calcium are not showing obvious imbalance. This is most meaningful when it matches how you feel and when it is consistent with your prior results. If you are monitoring a condition or medication, “optimal” often means your current plan is not pushing electrolytes or kidney markers in an unsafe direction. Even with normal results, persistent symptoms can still warrant targeted testing outside the CMP.
High results (above range) on a CMP without ALT
High BUN and creatinine can suggest dehydration, reduced kidney filtration, or increased protein breakdown, and the ratio between them can help your clinician narrow the cause. High glucose may reflect stress, recent food intake, steroid medications, or diabetes-related patterns that should be confirmed with repeat testing and often A1c. High potassium can be urgent in some situations, especially if kidney function is reduced or you take certain blood pressure medications, so it is important to follow lab flags and clinician guidance. Elevated alkaline phosphatase or bilirubin can point toward bile-duct/gallbladder patterns, certain bone conditions, or temporary changes after illness, and usually need context and sometimes additional liver testing (including ALT/AST).
Factors that influence CMP without ALT results
Hydration status is a major driver of several markers, including sodium, BUN, creatinine, albumin, and total protein. Fasting and timing matter for glucose, and recent intense exercise can affect creatinine and sometimes potassium. Medications and supplements can shift electrolytes and kidney markers, including diuretics, ACE inhibitors/ARBs, NSAIDs, lithium, and high-dose vitamin/mineral products. Acute illness, vomiting/diarrhea, and IV fluids can temporarily move results, so trends over time are often more informative than a single draw.
What’s included
- Albumin
- Albumin/Globulin Ratio
- Alkaline Phosphatase
- Ast
- Bilirubin, Total
- Bun/Creatinine Ratio
- Calcium
- Carbon Dioxide
- Chloride
- Creatinine
- Egfr
- Globulin
- Glucose
- Potassium
- Protein, Total
- Sodium
- Urea Nitrogen (Bun)
Similar tests to consider
Frequently Asked Questions
What is the difference between a CMP and a CMP without ALT?
A standard CMP includes ALT, an enzyme that can rise with liver cell injury. A CMP without ALT removes that one marker but keeps electrolytes, kidney markers (BUN/creatinine), glucose, proteins, calcium, and other liver-related markers like alkaline phosphatase and bilirubin.
Do I need to fast for a CMP without ALT?
Fasting is not always required, but it can make the glucose result easier to interpret. If your goal is to evaluate fasting glucose, a 8–12 hour fast (water is usually fine) is commonly used; follow the instructions you receive for your order and ask your clinician if you take diabetes medications.
What is a normal range for CMP results?
Reference ranges vary by laboratory, method, and sometimes age and sex, so the “normal” range is the one printed next to your result. Your clinician often focuses on patterns (for example, sodium plus BUN/creatinine) and on changes from your prior baseline, not only whether a value is barely inside or outside the range.
What does a high BUN/creatinine ratio mean?
A higher ratio is commonly seen with dehydration or reduced blood flow to the kidneys, but it can also be influenced by higher protein intake, gastrointestinal bleeding, or certain medications. It is interpreted alongside the absolute BUN and creatinine values, eGFR, blood pressure, and your hydration status.
If my creatinine is high, does that mean I have kidney disease?
Not necessarily. Creatinine can rise temporarily with dehydration, recent intense exercise, higher muscle mass, or certain supplements/medications. Your clinician usually looks at eGFR trends over time, urine testing (such as urine albumin/creatinine ratio), and repeat labs to determine whether there is chronic kidney disease.
How often should I repeat a CMP without ALT?
It depends on why you are testing. For routine monitoring, many people repeat it annually or as part of periodic check-ins; for medication changes or abnormal results, your clinician may recommend repeating in weeks to a few months. If you are acutely ill or a value is significantly abnormal (especially potassium), follow-up may be sooner.
What tests are commonly ordered with a CMP without ALT?
Common companions include a complete blood count (CBC), hemoglobin A1c for longer-term glucose trends, a lipid panel for cardiometabolic risk, thyroid testing when fatigue or weight change is a concern, and urine testing (urinalysis and/or urine albumin/creatinine ratio) when kidney risk is being evaluated.