Answer:
Mechanical barriers — which include the skin , mucous membranes , and fluids such as tears and urine — physically block pathogens from entering the body. Chemical barriers — such as enzymes in sweat , saliva , and semen — kill pathogens on body surfaces.
Explanation:
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<em>Rx: </em>Ambien 5mg # 10 (ten)
Sig: Ambien 5 mg PO HS for sleep PRN
Refills: 3 times
These abbreviations mean:
PO- the oral route for medication (per os)
HS- a patient's bedtime (hour of sleep)
PRN- as necessary or needed (pro re nata)
Further Explanation:
Ambien belongs to a drug class of sedative-hypnotics; in the brain, it causes calming effects -users fall asleep more quickly for a full night's rest. It is used in the treatment of insomnia in adults who have problems getting to sleep and staying asleep. However,<u> treatment is typically only carried out for 1-2 weeks at a time.</u>
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