Respiratory Failure - Symptoms - NHLBI, NIH
Mar 24, 2022 · Symptoms of respiratory failure depend on its cause, the levels of oxygen and carbon dioxide in your blood, and whether respiratory failure developed slowly over time or suddenly. Acute respiratory failure can be a life-threatening emergency. Low oxygen levels in your blood can cause:
Pneumonia - Symptoms - NHLBI, NIH
Mar 24, 2022 · Low oxygen levels in your blood, measured with a pulse oximeter; Shortness of breath; You may also have other symptoms, including a headache, muscle pain, extreme tiredness, nausea (feeling sick to your stomach), vomiting, and diarrhea. Older adults and people who have serious illnesses or weakened immune systems may not have the typical symptoms.
What Is Anemia? - NHLBI, NIH
Mar 24, 2022 · Anemia is a condition that develops when your blood produces a lower-than-normal amount of healthy red blood cells. If you have anemia, your body does not get enough oxygen-rich blood. The lack of oxygen can make you feel tired or weak. You may also have shortness of breath, dizziness, headaches, or an irregular heartbeat.
What Is Acute Respiratory Distress Syndrome? - NHLBI, NIH
Mar 24, 2022 · Other symptoms of ARDS are low blood oxygen, rapid breathing, and clicking, bubbling, or rattling sounds in the lungs when breathing. ARDS can develop at any age. To diagnose ARDS, the doctor will do a physical exam, review your medical history, measure blood oxygen levels, and order a chest X-ray. Supplying oxygen is the main treatment for ...
Respiratory Failure - What Is Respiratory Failure? - NHLBI, NIH
Mar 24, 2022 · Symptoms include shortness of breath or feeling like you can’t get enough air, extreme tiredness, an inability to exercise as you did before, and sleepiness. A doctor may diagnose you with respiratory failure based on the oxygen and carbon dioxide levels in your blood, a physical exam to see how fast and shallow your breathing is and how hard ...
COPD - Symptoms - NHLBI, NIH
Oct 4, 2024 · For more serious symptoms, such as becoming short of breath during physical work, your healthcare provider can provide treatments and other ways to help. Severe COPD can cause additional symptoms, such as lack of appetite, loss of …
Low Blood Pressure - Low Blood Pressure - NHLBI, NIH
Mar 24, 2022 · Sitting down may relieve the symptoms. If your blood pressure drops too low, your body’s vital organs do not get enough oxygen and nutrients. When this happens, low blood pressure can lead to shock , which requires immediate medical attention. Signs of shock include cold and sweaty skin, rapid breathing, a blue skin tone, or a weak and rapid ...
Sleep Apnea - Diagnosis - NHLBI, NIH
Mar 24, 2022 · Your provider will also want to know whether you are using medicines, such as opioids, that could affect your sleep or cause breathing symptoms of sleep apnea. They may want to know whether you have traveled recently to altitudes greater than 6,000 feet, because these low-oxygen environments can cause symptoms of sleep apnea for a few weeks ...
Newborn Breathing Conditions Respiratory Distress Syndrome (RDS)
Mar 24, 2022 · Respiratory distress syndrome (RDS) is a common breathing disorder that affects newborns. It occurs most often in babies born several weeks before their due date since their lungs are underdeveloped. Learn more about the symptoms, causes, risk …
Vascular Dementia - Vascular Dementia - NHLBI, NIH
Sep 28, 2022 · Vascular dementia is caused by conditions that damage the blood vessels in the brain or interfere with blood flow and oxygen delivery to the brain. This oxygen shortage keeps the brain from working as well as it should. For example, a stroke may block blood flow to the brain and lower oxygen levels.