Hemoglobin 150 and Above: Normal or Elevated in Women and Men

You saw a figure of 150, 160, or even 180 g/L in your test results and are now wondering what to do about it. There is no single answer to "normal or not" without your test form. Reference ranges are set by the laboratory and depend on sex, age, and other parameters.

What hemoglobin is considered normal in women and men

Hemoglobin is an iron-rich protein. It carries oxygen from the lungs to all organs and tissues. Its level is usually checked in a complete blood count.

The result is always compared with a reference range. This range differs by laboratory, as well as by age, sex, and a person's origin. That is why there is no single "normal" figure for everyone.

Sex is one of the factors that affect the range. That is why the same figure in a woman and in a man may be read differently. Look at the limits on your own test form next to the result.

Hemoglobin 150 in women: high or normal

Everything depends on the upper limit of your laboratory. For one woman, 150 g/L is the upper limit of normal. For another, it is already above the range.

If the value falls outside the reference range, it is called elevated. The figure alone does not indicate the cause. The doctor looks at symptoms, medical history, and other blood parameters.

Values of 155 and 160 are assessed the same way: they are compared with the laboratory's limits, and if exceeded, the doctor looks at the red blood cell count and hematocrit.

Hemoglobin 160 and 170 in men: what the values mean

For men, laboratories usually specify a separate range. Use the limits on your test form as a guide.

The figures 160, 162, 170, 175, and 180 g/L are read the same way. We compare them with the reference range, and if the value is above the upper limit, it is elevated.

Elevation does not equal disease. High hemoglobin occurs in people living at high altitude, in smokers, and with dehydration. Some medications, activity level, and genetic characteristics affect the result.

Why hemoglobin can be elevated

Doctors divide the causes into several groups. In apparent erythrocytosis, the red blood cell count is normal, but there is less plasma in the blood. The blood then becomes thicker. This can occur with excess weight, smoking, heavy alcohol consumption, and certain medications, including diuretics.

Relative erythrocytosis is associated with dehydration. Absolute erythrocytosis is when the body produces too many red blood cells.

In the primary form, the problem lies in the bone marrow cells that produce red blood cells. The most common type is polycythemia vera, a rare, slowly growing blood disease. It is linked to a change in the JAK2 gene, and the average age at diagnosis is 60 years.

The secondary form is a consequence of another disease. For example, COPD, in which tissues lack oxygen. Or kidney problems: kidney tumors, narrowing of the arteries supplying it.

High hemoglobin also occurs with lung diseases, heart diseases, and sleep apnea.

How the doctor determines the cause of elevated hemoglobin

The first step is the same blood test. It checks the red blood cell count and hematocrit, that is, what proportion of the blood is made up of red blood cells. A high concentration indicates erythrocytosis.

Sometimes the elevation is found by chance during a routine check for another reason. The doctor may then refer you to a hematologist, a specialist in blood diseases.

Further testing includes a test for the altered JAK2 gene and an abdominal ultrasound to check the kidneys. The diagnosis is made based on the combination of findings, not on a single figure.

When to see a doctor

Elevated hemoglobin makes the blood thicker. It flows less well through the vessels, and some symptoms are related precisely to this.

Make an appointment with a doctor if these signs appear:

• headaches, dizziness, blurred vision;
• red skin, especially on the face, hands, and feet;
• fatigue and high blood pressure;
• abdominal discomfort, confusion;
• nosebleeds, bruising, itchy skin after a shower, joint pain.

These symptoms are nonspecific. They also occur in other conditions, so a diagnosis is not made based on how you feel.

Elevated hemoglobin by itself is not a reason to call an ambulance. Call 103 or 112 if there are signs of thrombosis: pain, swelling, redness, and tenderness in one leg, severe aching pain in it, hot skin over the site of the clot. An ambulance is needed for shortness of breath, chest or upper back pain, blood when coughing, a presyncopal state, or fainting. And for signs of a heart attack or stroke.

This material is for reference. It does not replace a doctor's consultation: interpreting your test form is the specialist's task.

This content is for reference and does not replace a doctor's consultation. Medical disclaimer