"according to nasa, astronauts experience a 1% loss of bone per month in space. under microgravity conditions, osteoblast activity decreases and osteoclast activity increases ."

based on this information, which of the following explains the risks an astronaut might experience after a long mission in space?

a - bone stress would cause bone tissue to thicken
b- bone erosion would cause hormonal secretion's that decrease the absorption of calcium.
c- bone destroying cells would outnumber bone-building cells causing thinning
d- bone absorption would cause the matrix to lack calcium

Rectangle pqrs has vertices p(1, 4), q(6, 4), r(6, 1), and s(1, 1). without graphing, find the new coordinates of the vertices of the rectangle after a reflection over the x-axis and then another reflection over the y-axis.

Rita schmidt, 74 years of age, is a female patient who was admitted to the surgical unit after undergoing removal of a section of the colon for colorectal cancer. the patient does not have a colostomy. the patient has several small abdominal incisions and a clear dressing over each site. the incisions are well approximated and the staples are dry and intact. there is a jackson-pratt drain intact with minimal serous sanguineous drainage present. the patient has a salem sump tube connected to low continuous wall suction that is draining a small amount of brown liquid. the patient has no bowel sounds. the foley catheter has a small amount of dark amber-colored urine without sediments. the patient has sequential compression device (scd) in place. the nurse performs an assessment and that the patient's breath sounds are decreased bilaterally in the bases and the patient has inspiratory crackles. the patient's cardiac assessment is within normal limits. the patient is receiving o2 at 2 l per nasal hg; heart rate 110 bpm; respiratory rate 16 breaths/min; and the patient is afebrile. the patient is confused as to place and time. cannula with a pulse oximetry reading of 95%. the vital signs include: blood pressure, 100/50 mm. a. explain the assessment parameters used to provide clues to detect postoperative problems early and the interventions needed. b. what gerontological postoperative considerations should the nurse make?

A65-year-old male was admitted for evaluation of pain on swallowing and a sore throat that has persisted for the past year. the discomfort has not changed with the use of various over the counter cold remedies. the client has lost weight due to a decrease in appetite and difficulty swallowing. he has smoked 3 packs of cigarettes a day for 40 years.a laryngoscopy showed a subglottic mass. the client had a total laryngectomy with a tracheostomy to manage laryngeal cancer. he also has a nasogastric tube in place. you will be providing care for this client during his first 72 hours after surgery. a. select one nanda-i nursing diagnosis and describe why it is a priority for this client. b. what is the cause or related factor for this nanda-i nursing diagnosis? c. identify an outcome for this nanda-i nursing diagnosis. the outcome must be patient-centered and measurable. d. identify two (2) nursing interventions that will this client achieve the outcome. e. describe how each intervention will the patient achieve the outcome.