Adult Health Exam 4 (musculoskeletal & male reproductive disorders) Flashcards
(152 cards)
how many bones in body
206
what are osteoblasts vs osteoclasts?
blast = builders clast = remodelers
osteocytes
mature bone
what are the 5 diff types of bones
Long bones, short bones, flat bones, irregular bones, sesamoid bones
what is compact bone vs spongy bone
Compact bone (cortical): dense and looks smooth
Spongy bone (cancellous): small lattice-like pieces called trabeculae
what are the 2 types of marrow and what do they contain
Red marrow consists mainly of hematopoietic tissue
Yellow marrow consists mostly of fat cells
how does estrogen affect bones?
Estrogen–induces chemical in osteoclasts that causes self destruction
Impact of menopause–decreases bone
How do calcitonin and TFH affect bone growth
Calcitonin & TSH = inhibit osteoclastic activity, stops remodeling process
-anterior pituitary promotes bone growth
how does parathyroid hormone affect bone growth
Parathyroid hormone = promotes activity for osteoblastic activity
how does GH affect bone growth
Growth hormone = facilitate bone growth until adult bone is reached
muscle strength is measured on what scale
0-5
what are lab studies associated with bone probs
- Calcium (norm: 8.8-10.3 mg/dL)
- Phosphorus (3-4.5 mg/dL) is inversely proportionate to Ca
- Vitamin D
- Calcitonin + Parathyroid
- Estrogen stimulates osteoblasts
what are imaging studies for bone issues?
XR, CT, MRI, arthrogram, DEXA (bone mineral density scan), bone scan, EMG, arthroscopic exam arthroscopy, arthrocentesis
What is a DEXA scan?
- Considered the “Gold Standard” for osteopenia/osteoporosis diagnosis
- No prep required
- Obtain height/weight
what happens to MSKL system with age
- Bone remodeling…
- Decrease in muscle fxn, mass & strength (sarcopenia)
- Decrease in motor neurons
- Decrease in joint/ligament/tendon flexibility and increase in stiffness
- Kyphotic posture
What are the ACCESS risk factors for osteoporosis
A: alcohol C: corticosteroids C: low calcium E: estrogen low S: smoking S: sedentary lifestyle
what is pathophys for osteoporosis and s/sx
Bone resorption activity is greater than bone rebuilding activity
Osteoclasts > osteoblasts
s/sx
“Silent” disease…
Dowager’s hump
Pathologic fracture
how to diagnose osteoporosis?
- Bone density tests: DEXA Scans
- –Osteopenia vs osteoporosis
- Quantitative computed tomography
prevention is key
what are nutritional changes for osteoporosis?
- -Calcium + vitamin D supplements (1st line PREVENTION!)
- -Recommended Calcium dosing for adults > 51: 1200mg/day
- -Recommended Vitamin D dosing: 800-1000iu
what meds for osteoporosis
Ca, vitD biphosphonates (fosamax), calcitonin, estrogen agonist/antagonist, parathyroid, dual acting bone agent, monoclonal
Calcium & vitamin D for osteoporosis
Ca dosing for adults >51 = 1200mg/day
Recommended Vitamin D dosing = 800-100 iu
Administration considerations = need together
Bisphosphonates for osteoporosis
Oral (Fosamax; risedronate; ibandronate)
- -Fosamax = take on empty stomach w full glass of water, sit up for 30 min afterwards, SE is destruction of jaw bone
- or monthly IV
Calcitonin for osteoporosis
made by thyroid, inhibits osteoclasts, can give as SQ injection, take vit d supp too
Estrogen agonist/antagonist for osteoporosis (evista)
preventative & treats osteoporosis, SE are risk for DVT