This topic contains a solution. Click here to go to the answer

Author Question: During the normal cardiac cycle, blood pressure reaches a peak, followed by a trough, in the cycle. ... (Read 127 times)

evelyn o bentley

  • Hero Member
  • *****
  • Posts: 564
During the normal cardiac cycle, blood pressure reaches a peak, followed by a trough, in the cycle. What is the peak known as?
 
  a. Pulse pressure
  b. Systole
  c. Diastole
  d. Korotkoff phase

Question 2

Handwashing with soap and water is:
 
  a. the most effective way to reduce the number of bacteria on the nurse's hands.
  b. more effective than alcohol-based products for washing hands.
  c. necessary for hand hygiene if hands are visibly soiled.
  d. not necessary if the nurse wears artificial nails.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

B
Blood pressure is the force exerted by blood against the vessel walls. During a normal cardiac cycle, blood pressure reaches a peak, followed by a trough, or low point, in the cycle. The peak pressure occurs when the heart's ventricular contraction, or systole, forces blood under high pressure into the aorta. The difference between systolic pressure and diastolic pressure is the pulse pressure. When the ventricles relax, the blood remaining in the arteries exerts a minimum or diastolic pressure. Diastolic pressure is the minimal pressure exerted against the arterial wall at all times. As the sphygmomanometer cuff is deflated, the five different sounds heard over an artery are called Korotkoff phases.

Answer to Question 2

C
Soap and water is still necessary for hand hygiene if hands are visibly soiled. Recent research has shown that handwashing with plain soap sometimes results in paradoxical increases in bacterial counts on the skin. Alcohol-based products have been more effective for standard handwashing or hand antisepsis than soap or antiseptic soaps. Studies have shown the efficacy of alcohol-based hand sanitizers in reducing infection in a variety of settings from intensive care to long-term care. Studies have shown that health care workers with chipped nail polish or long or artificial nails have high numbers of bacteria on their fingertips. For this reason, the CDC recommends that health care workers not wear artificial nails and extenders, and that they keep natural nails less than one-quarter of an inch long when caring for high-risk patients.




evelyn o bentley

  • Member
  • Posts: 564
Reply 2 on: Jun 25, 2018
:D TYSM


samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

For a complete list of videos, visit our video library