what are the signs and causes of a backdraft?
476750
Common signs of backdraft include a sudden inrush of air upon an opening into a compartment being created, lack of visible signs of flame (fire above its upper flammability limit), "pulsing" smoke plumes from openings and auto-ignition of hot gases at openings where they mix with oxygen in the surrounding air.
530243
backfiring is usually caused by a lean condition in the engine. Check fuel pump pressure or if you have a aftermarket ecu it is not set right.
354104
['Swollen feet and/or hands. Swelling can be an annoying pregnancy symptom. ... ', 'Backaches. Baby is putting a lot of pressure on your insides, causing aches and pains in your back.', 'Leg cramps. ... ', 'Varicose veins. ... ', 'Trouble sleeping. ... ', 'Nosebleeds. ... ', 'Baby kicks.']
717592
['Vomiting and diarrhea increase fluid loss.', "Illness, including fever, infections, or other common illnesses, can increase the body's need for fluid while also decreasing the person's motivation to drink.", 'Diabetes can increase fluid output.', 'Decreased fluid intake for any reason is a concern.']
1433386
['low blood sugar.', 'low blood pressure.', 'syncope, or the loss of consciousness due to lack of blood flow to the brain.', 'neurologic syncope, or the loss of consciousness caused by a seizure, stroke, or transient ischemic attack (TIA)', 'dehydration.', "problems with the heart's rhythm."]
1082610
['crying while passing gas or soon after, especially if the crying happens when a baby is unlikely to be hungry or tired.', 'arching the back.', 'lifting the legs.', 'a swollen-looking stomach.', 'passing gas or belching.']
745462
['Loss of blood from bleeding.', 'Low body temperature.', 'High body temperature.', 'Heart muscle disease causing heart failure.', 'Sepsis, a severe blood infection.', 'Severe dehydration from vomiting, diarrhea, or fever.', 'A reaction to medication or alcohol.']
1246508
['An injury to the ligaments or muscles in the back, such as a sprain or a strain.', 'A fracture or dislocation of the spine. ... ', 'A torn or ruptured disc. ... ', 'An injury that causes the compression of nerves in the lower back (cauda equina syndrome).']
1343285
['are overweight.', 'smoke.', 'drink too much alcohol.', 'sleep on your back.']
333162
['fainting – this can cause someone to collapse.', 'breathlessness.', 'extreme tiredness (fatigue), sometimes with confusion.', 'chest pain.', 'having a slow heart beat (bradycardia), or feeling a skipping, fluttering or pounding in your chest (palpitations)']
608703
['Other less dangerous abnormal rhythms.', 'Temporary low blood pressure.', 'Heart damage (usually temporary and without symptoms)', 'Heart failure.', 'Skin damage.', 'Dislodged blood clot, which can cause stroke, pulmonary embolism, or other problems.']
283351
['All take, no give. Any relationship in which you experience withdrawals of energy without deposits will leave you in the negative.', 'Feeling drained. ... ', 'Lack of trust. ... ', 'Hostile atmosphere. ... ', 'Occupied with imbalance. ... ', 'Constant judgment. ... ', 'Persistent unreliability. ... ', 'Nonstop narcissism.']
1220069
['Contour irregularities. ... ', 'Fluid accumulation. ... ', 'Numbness. ... ', 'Infection. ... ', 'Internal puncture. ... ', 'Fat embolism. ... ', 'Kidney and heart problems.']
222019
['Your uterus measures small for gestational age.', "You're not gaining enough pregnancy weight.", "Your baby's heart rate suddenly drops.", 'You have a decreased amount of amniotic fluid, which is detected via ultrasound.']
246472
['being unable to move around easily due to old age or illness.', 'weight loss - you may have less padding over bony areas.', 'sliding down in a bed or chair - pressure on the skin cuts off blood supply because the skin is being pulled in different directions (called shearing)']
781535
['fainting.', 'weakness.', 'dehydration.', 'hunger pangs.']
54394
['Pressure, tightness, pain, or a squeezing or aching sensation in your chest or arms that may spread to your neck, jaw or back.', 'Nausea, indigestion, heartburn or abdominal pain.', 'Shortness of breath.', 'Cold sweat.', 'Fatigue.', 'Lightheadedness or sudden dizziness.']