(D74) Methaemoglobinaemia

Mental processes violations manifest as a disruption in thinking, memory, problem-solving, and communication. Symptoms can include confusion, disorientation, difficulty concentrating, and difficulty with decision-making. In more severe cases, hallucinations and delusions may also occur. Symptoms can...

Conjunctival pallor is a symptom characterized by a pale appearance of the conjunctiva, the thin membrane covering the white of the eye. It usually appears as a whitish discoloration, which can be seen when the eye is opened wide. It may develop gradually or suddenly and can be accompanied by other ...

Chest pain is a common symptom that can range from mild to severe. It may be described as pressure, squeezing, burning, or tightness in the chest. It can develop quickly or gradually, and can be accompanied by other symptoms such as nausea, sweating, or shortness of breath. Types of chest pain inclu...

Dizziness is a sensation of feeling off-balance and lightheaded. It can range from mild to severe and can be accompanied by a feeling of spinning or swaying. It can develop suddenly or gradually, and can be triggered by physical activity, changes in position, or lack of food or fluids. Symptoms can ...

Clouding of consciousness is a symptom of decreased alertness, confusion, and disorientation. It is often caused by a medical condition, such as a stroke, head trauma, or drug overdose. It can also be caused by a lack of sleep, dehydration, or intoxication. The symptom manifests itself in a decrease...

Cardiopalmus is an irregular heartbeat, characterized by a rapid and/or forceful heartbeat. It can vary in intensity and duration and often develops gradually over time. Symptoms can range from a fluttering sensation in the chest to a racing heart rate. It can also be accompanied by chest pain, dizz...

Dementia is a symptom of a wide range of conditions that affect the brain. It is characterised by a decline in cognitive function, including memory, language, problem-solving, and judgement. It can also affect behaviour, emotions, and the ability to perform everyday activities. Symptoms typically de...

Cyanosis is a medical symptom characterized by a bluish discoloration of the skin and mucous membranes, due to a lack of oxygen in the blood. It is most commonly seen around the lips, fingers, and toes, and can range in severity from mild to life-threatening. Early signs may include a faint bluish t...

Pale skin is a symptom of anemia or other blood-related issues. It is characterized by a lack of color in the skin, appearing wan and ashen. It may also be accompanied by fatigue, dizziness, and shortness of breath. Pale skin develops gradually due to a decrease in red blood cells or hemoglobin, whi...

Headache is a common symptom that can range from mild to severe. It typically develops gradually and can be localized or generalized. Common types of headache include tension-type, migraine, cluster, and sinus headaches, each with their own unique characteristics and manifestations. Tension-type hea...

A spasm is a sudden, involuntary muscle contraction that can cause pain and discomfort. It can occur in any muscle group and can be caused by a variety of different conditions. Symptoms of a spasm can include tightness, pain, and difficulty moving the affected muscle. Spasms can develop suddenly or ...

Fainting is a sudden, brief loss of consciousness and muscle tone, usually caused by a drop in blood pressure. It is often accompanied by a feeling of dizziness, lightheadedness, and confusion. Fainting usually occurs in response to a sudden emotional or physical stressor, such as standing for a lon...

Weakness is a lack of strength and energy that can range from mild to severe. It can be a symptom of a wide range of conditions, including physical and mental exhaustion, chronic illnesses, and certain medications. It can also be caused by a lack of nutrients, dehydration, or an underlying medical c...