The nurse assists and educates clients on the difference between nonspecific and specific immunity. The body possesses several defense systems
Which nonspecific defense mechanism provides a physical barrier and secretes enzymes that kill or reduce the virulence of bacteria? A) Skin
B) Mechanical reactions
C) Chemical barriers
D) Tears
A
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The skin provides a physical barrier and secretes enzymes that kill or reduce the virulence of bacteria. Mechanical reactions, such as coughing or sneezing, help remove pathogenic material. Chemical barriers, such as the normal flora (microorganisms) of the GI system, neutralize or kill microorganisms. Tears dilute and wash away irritating substances and microbes.
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A nurse assesses a Grey Turner sign in a patient who was admitted 2 days earlier after an automobile accident. What does this finding indicate?
a. Retroperitoneal bleeding and bruising over the flank b. Hematuria with abdominal bruising c. Distended bladder with painful urination d. Bladder spasms on palpation of abdomen
The vital signs should be charted:
1. after they have been reported to the nurse in charge or the doctor. 2. at the end of the shift. 3. before the lunch break. 4. immediately after they have been taken.
A patient has a stroke volume (SV) of 75 mL/beat and end-diastolic volume of 120 mL. What should the nurse calculate this patient's ejection fraction to be? _______ %
Record your answer rounding to the nearest whole number.