A middle-aged adult client with nausea and vomiting for three days presents to the emergency room.
Which findings should the nurse expect to assess in a client diagnosed with dehydration? Select all that apply.

Hand hygiene techniques are the first line of defense in medical asepsis because they prevent the transmission of microorganisms from one person or object to another. Hand hygiene techniques include washing hands with soap and water or using an alcohol-based handrub.

Choice A is wrong because isolation or barrier procedures are not the first line of defense in medical asepsis, but rather a way of preventing the spread of infection to other patients or health care workers when a patient has a known or suspected infection.

Choice b is wrong because the nature of detergent used on the unit is not the first line of defense in medical asepsis, but rather a factor that affects the effectiveness of cleaning and disinfection of surfaces and equipment.

Choice D is wrong because the ventilation system type is not the first line of defense in medical asepsis, but rather a factor that affects the quality of air and the risk of airborne transmission of microorganisms.

Rhonchi. Rhonchi are low-pitched, rattling sounds that indicate mucus in the larger airways. They are most evident on expiration and may decrease after coughing.

Choice B is wrong because wheezes are high-pitched, squeaking sounds that indicate narrowed small air passages. They are usually heard on both inspiration and expiration.

Choice C is wrong because crackles are short, high-pitched popping sounds that indicate fluid or inflammation in the alveoli. They are usually heard on inspiration.

Choice D is wrong because pleural friction rubs are creaking or grating sounds that indicate inflammation of the pleura. They are usually heard on both inspiration and expiration and do not change with coughing.