Deep breathing

DeLong, E.F. (2004). Microbial life breathes deep. Science, 306, 2198-2200. 

I was about to snap back at him before I caught n self He was right. I breathed deep, tying to control nyself Mackenzie was watching me, curious. How well do you know her ... 

Diabetic ketoacidosis (hyperglycemic reaction) Extreme thirst, polyuria, fruity hreath odor, Kussmaul breathing (deep, rapid, labored, distressing, dyspnea), rapid, thready pulse, dry mucous membranes, poor skin turgor Blood sugar level >250 mg/dL... 

In the fit testing of respirators, normal operations such as breathing, deep breathing, moving the head from side to side (slowly) or up and down, talking or reading a short message were discussed. OSHA section 1910.134 does not specify how well the respirator shall fit. Additions such as 1910.1017, the Vinyl Chloride Standard, used the level of atmospheric concentration the employee could be exposed to as the rationale for the respirator used. For example, if the employee were exposed to concentrations not over 10 ppm, the required apparatus could be any one of three types ... 

Chlorine is a respiratory irritant. The gas irritates the mucus membranes and the liquid burns the skin. As little as 3.5 ppm can be detected as an odor, and 1000 ppm is likely to be fatal after a few deep breaths. In fact, chlorine was used as a war gas in 1915. 

Breath alcohol testing is accompHshed by a number of techniques. The oldest rehable procedure involves bubbling a measured volume of deep-lung air containing alcohol through an acidic solution of potassium dichromate, Deep-lung air is the last portion of expired breath. It is collected in... 

The quantity of breathing gas consumed in deep dives is of both economical and logistical concern at depths of 300 m, a reasonably active diver requites ca 1.8 m (64 fT at STP) of breathing gas per minute. In closed-cycle breathing systems, of both the self-contained and umbiHcal types, the helium is recitculated after carbon dioxide is removed and the oxygen replenished (147). 

Concentration likely to be fatal after a few deep breaths... 

Narcosis Narcosis is a state of deep stupor or unconsciousness, produced by a chemical substance, such as a drug or anesthesia. Inhalation of certain chemicals can lead to narcosis. For example, diethyl ether and chloroform, two common organic solvents, were among the first examples of anesthesia known. Many other chemicals that you would not suspect can also cause narcosis. For example, even though nitrogen gas comprises 80% of the air we breathe and is considered chemically inert (unreactive) it can cause narcosis under certain conditions. Always work with adequate inhalation and avoid inhaling chemical fumes, mists, dusts etc. whenever possible. Use fume hoods and respirators as necessary. 

Inhaled gaseous compounds are absorbed in all parts of the respiratory system whereas particle size determines how deep into the airways the parti cles will he transported in the airstrearn. Shortness of breath is a typical sign of a chemical exposure that has affected the lungs, and it may be evoked through iminunological mechanisms (e.g., formaldehyde, ethyleneoxide), or through toxic irritation (formaldehyde, isocyanates, sulfur dioxide, nitrogen dioxide, Frequently the mechanism depends on the concentration ol the com... 

Another consequence of the effect of pressure on gas solubility is the painful, sometimes fatal, affliction known as the bends. This occurs when a person goes rapidly from deep water (high pressure) to the surface (lower pressure), where gases are less soluble. The rapid decompression causes air, dissolved in blood and other body fluids, to bubble out of solution. These bubbles impair blood circulation and affect nerve impulses. To minimize these effects, deep-sea divers and aquanauts breathe a helium-oxygen mixture rather than compressed air (nitrogen-oxygen). Helium is only about one-third as soluble as nitrogen, and hence much less gas comes out of solution on decompression. 

FIGURE 2-9. A respiratory inhalant is used to deliver a drug directly into the lungs. To deliver a dose of the drug, the patient takes a slow, deep breath while depressing the top of the canister, (fee Chapter 37 for more information on drugs given by inhalation.)... 

Levels greater than 150 mcg mL may result in symptoms of mild salicylism, namely tinnitus (ringing sound in the ear), difficulty in hearing, dizziness, nausea, vomiting, diarrhea, mental confusion, central nervous system depression, headache, sweating, and hyperventilation (rapid, deep breathing). 

The nurse describes, explains, and demonstrates postoperative patient activities, such as deep breathing, coughing, and leg exercises. 

If the nurse is responsible for administering the medication by nebulization, it is important to place the patient in a location where he can sit comfortably for 10 to 15 minutes. The compressor is plugged in and the medication mixed as directed, or the prepared unit dose vial is emptied into the nebulizer. Different types of medication are not mixed without checking with the physician or the pharmacist. The mask or mouthpiece is assembled and the tubing connected to the compressor. The patient is placed in a comfortable, upright position with the mask over the nose and mouth. The mask must fit properly so that the mist does not flow up into the eyes. If using a mouthpiece instead of a mask, have the patient place the mouthpiece into the mouth. The compressor is turned on and the patient instructed to take slow, deep breaths. If possible, the patient should hold his breath for 10 seconds before slowly exhaling. The treatment is continued until the medication chamber is empty. After treatment, the mask is washed with hot, soapy water, rinsed well, and allowed to air dry. 

When the drug passes through the extender, take four to six deep breaths to deliver the drug to the lower respiratory passages. 

Activate the inhaler while taking a slow, deep breath for 3 to 5 seconds. 

C02-0082. One breathing mixture for deep-sea divers contains 25% moiecuiar oxygen and 75% heiium. Draw a moiecuiar picture of a sampie of this mixture that contains three moiecuies of oxygen. 

Exercise demonstrated an improvement in quality of life but did not improve vasomotor symptoms. Paced respiration, a form of deep, slow breathing, improved vasomotor symptoms in a small group of patients. 

I know. But I cannot follow their example though they be the highest in the land. I took a deep breath. I know you will not force me. You might offer me the whole world—a king s ransom—and it would still not be enough for me to shame my honor so. I have little else that I may call my own, but my soul and my body are mine. I cannot and I will not defile them with such a sin. ... 

I drew in a breath that was as deep as the hammering of my heart allowed. 

---