Samuelmgichuki96

1. What is the study of ethical issues in medicine? a. Biometrics b. Bioethics c. Macro ethics d. Micro ethics - ️️B Bioethics is defined as the application of ethics to medicine, nursing, and health care. Biometrics is a branch of biology that studies biological phenomena and observations by means of statistical analysis. Micro ethics consider individuals and internal relations of the specific situations, whereas macro ethics applies to the collective social responsibility and to s...

Death from acute radiation exposure follows a _______ dose-response relationship. a) stochastic b) non-threshold c) threshold d) non-somatic - ️️c) threshold What type of dose-response curve (graph) is used as the basis of all radiation protections problems? a) Linear, Non-Threshold b) Non-Linear, Non-Threshold c) Linear, Threshold d) Non-Linear, Threshold - ️️a) Linear, Non-Threshold What is the extra measure of caution built into diagnostic radiation protection standards? ...

Prophylactic cranial irradiation for ALL is administered to a total dose of: A. 1200 cGy B. 1800 cGy C. 3000 cGy D. 4500 cGy E. 6000 cGy - ️️B. 1800 cGy The treatment time for a field requiring 350 monitor units while the linear acellerator dose rate is 220 units/minute is: A. .394 minutes B. .629 minutes C. 1.59 minutes D. 2.52 minutes - ️️C. 1.59 minutes Placing marks on the central axis only is: A. Sufficient for daily realignment and targeting B. Sufficient when target ...

Dividing the radiation doses into split fractions has less effect on cell survival for neutrons (high LET) compared to photon radiation True or False - ️️True What is the recommended time required between radiation doses in order to allow for reassortment of the cell population to enter a new radiosensitive cell phase? 4 hours 24 hours 6 hours 2 hours - ️️6 hours Which stage of mitosis is most variable amongst mammalian cells? G1 G2 S Z - ️️G1 Which cell cycle stage is ...

Plant and animal cells are both - ️️Eukaryotic Plant and animal cells both contain a - ️️nucleus In plant and animal cells, the nucleus is surrounded by - ️️Rough ER & Smooth ER Both ER's hold ribosomes that - ️️send signals, carry out genetic processes and provide structural support to the cell Smooth ER processes what? - ️️it contains enzymes that process Lipids (or fats) for cell use Plant and animal cells both contain what organelle? - ️️Golgi apparatus The...

Which of the following term represent a plane that lies exactly in the midline? A. Sagittal plane B. Midsagittal plane C. Frontal plane D. Transverse plane - ️️B. Midsagittal plane What happens during inhalation? A. Diaphragm moves down (contracts) B. Diaphragm moves up (relaxation) C. Rib cage decrease D. Volume of chest cavity decrease - ️️A. Diaphragm moves down (contracts) Which of the following contain in the pelvic cavity? A. Stomach, intestines and liver. B. Urinary bl...

Absorption - ️️Refers to the total transfer of energy from the x-ray photon to the atoms of matter through which the x-ray beam passes. And depends on the energy of the x-ray beam and the composition of the absorbing matter of tissues Alpha particles - ️️These are emitted from the nuclei of heavy metals and exist as 2 protons and neutrons, without electrons Aluminum disks - ️️sheets of 0.5mm thick aluminum placed in the path of the x-ray beam—filter out the non-penetrating, l...

Which of the following describes ionization? (a) atoms without a nucleus (b) atom that loses an electron (c) atom with equal numbers of protons & electrons (d) none of the above - ️️(b) atom that loses an electron Which term describes the process by which unstable atom undergo spontaneous disintegration in an effort to attain a more balanced nuclear state? (a) radiation (b) radioactivity (c) ionization (d) ionizing radiation - ️️(b) radioactivity Which of the following is not ...

Which of the following tissues attaches muscle to bone? A.) Fascia B.) Tendon C.) Ligament D.) Bursa - ️️Tendon Which of the following ions is most abundant in extracellular fluid? A.) Calcium B.) Chloride C.) Sodium D.) Potassium - ️️Sodium Which of the following does the respiratory system eliminate when there is an excess of hydrogen ions in the body? A.) Oxygen B.) Carbon Dioxide C.) Bicarbonate D.) Lactic Acid - ️️Carbon Dioxide In a normally functioning cardiova...

which of the following pairs correctly matches a cellular organelle with its function? Golgi apparatus- protein synthesis smooth endoplasmic reticulum- energy production cytoskeleton- movement cell membrane- storage - ️️cytoskeleton- movement which of the following describes an anatomical relationship between two structures in the human body? the mouth is anterior to the nose the ribs are lateral to the sternum the patella is inferior to the tibia muscles are superficial to skin - ...