WGU D115 Unit 7 Questions and Answers 100% Passed

WGU D115 Unit 7 Questions and Answers 100% Passed What is needed for osteoclast actiation ✔✔RANKL What leads to primary osteoporosis ✔✔alterations in RANKL/OPG system lead to dysregulation Type IX collagen does what ...

WGU D115 Unit 7 Questions and Answers 100% Passed What is needed for osteoclast actiation ✔✔RANKL What leads to primary osteoporosis ✔✔alterations in RANKL/OPG system lead to dysregulation Type IX collagen does what ✔✔The glue that holds together the type two collagen acaffold of articular cartliage osteosarcoma looks like what ✔✔most common malignant primary bone tumor. Has a moth eaten pattern of bone destruction. Giant cells in myelogenic tumors affect what gender more often ✔✔females what is the hallmark of the OA process ✔✔Loss of proteoglycans from the articular cartilage what is chronic fatigue syndrome ✔✔(Myalgic encephalomyelitis)- a debilitating and complex disorder characterized by profound fatigue, musculoskeletal pain, cognitive impairment, unrefreshing sleep, impaired neurologic energy production, and immune impairments. what layer of the skin has langerhans-cells with dendritic processes and immune function ✔✔epidermis what is a vesicle ✔✔elevated, superficial, filled with serous fluid, less than 1cm. Ex-herpes, varicella what is a bulla ✔✔vesicle greater than 1cm- Ex- blister what are telangictasias ✔✔fine, irregular red lines produced by capillary dilation Which type of collagen provides the scaffolding of articular cartilage? ✔✔Collagen IX is the collagen, or scaffolding, that holds articular cartilage in place. What is the term for a chronic inflammatory joint disease characterized by stiffening and fusion of the spine and sacroiliac joints? ✔✔Ankylosing spondylitis is the result of chronic inflammation in the spine and sacroiliac joints resulting in stiffening and fusion of the spine. what is osteomyelitis ✔✔infection of bone Describe the most likely route by which the microorganisms reached the patient's bone. Submit and Compare, displayed below ✔✔The microorganisms likely reached her bone by extension from the nearby infected ulcer at the base of her big toe. Name the microorganism that is most likely causing the osteomyelitis. Submit and Compare, displayed below ✔✔staphylococcus aureus is the most common pathogen, although many diabetic foot ulcers are polymicrobial infections. Describe sequestrum. ✔✔Sequestrum is an area of necrotic bone that separates from the healthy bone. What is the most common cause of a corner metaphyseal fracture in a child younger than 12 months of age? ✔✔A transverse tibia fracture resulting in a straight horizontal break across the tibial shaft is a common cause of a corner metaphyseal fracture in a child under 12 months of age. A transverse fracture is caused by direct force, often involving the metaphysis, and is considered a sign of suspected physical abuse, though transverse fractures could be caused by other types of trauma. A spiral fracture, caused by a twisting force, also often involves the metaphysis and is also a sign of suspected physical abuse. Evaluation of osteogenesis imperfecta ✔✔hould include genetic testing, bone scans, and bone density testing. Osteogenesis imperfecta is a disorder caused by a genetic mutation in the gene that encodes for type I collagen, the main component of bone and blood vessels. The Sillence classification defines four types. Types I and IV are milder forms and are inherited in an autosomal dominant pattern. Types II and III are more severe and are inherited in a recessive pattern. The classic clinical manifestations of osteogenesis imperfecta are osteopenia and an increased rate of fractures. Type IV can be subtle with more normal stature and fractures, often not occurring until children are older; however, it can be misdiagnosed as child abuse. The medical treatment for osteogenesis imperfecta ✔✔involves increased calcium and vitamin D. Pamidronate and other bisphosphonates, such as alendronate (Fosamax) which decrease bone resorption by inhibiting osteoclasts, are now frequently used. What is the most common type of skin cancer? ✔✔Basal cell carcinoma is the most common type of skin cancer. Which skin infection is caused by a virus? Herpes simplex Acne Erysipelas Furuncles ✔✔Herpes simplex is a result of the herpes virus. Scabies is characterized by burrows and papules. True False ✔✔Scabies is caused by the mite, sarcoptes scabiei, which burrows under the skin and lays its eggs. The burrows are produced from the actual burrowing of the mite, while the papules result where the mite settles to lay its eggs. Scabies infestation is intensely pruritic, often resulting in excoriation due to scratching at night when the mites are most active. What is a complication of rhabdomyolysis? Paresthesia Paralysis Pruritus Dark urine ✔✔Dark urine is one of the classic findings of rhabdomyolysis, along with muscle weakness and pain. Which clinical manifestation may Paget disease exhibit? Increased sympathetic nervous system discharge Increased lacrimation Cranial nerve dysfunction with impaired motor function Decreased density of the skull bones ✔✔Cranial nerve dysfunction with impaired motor function may occur due to complications from pagetic involvement of the skull. Which statement is true regarding bone growth? Bone growth occurs at the diaphysis. Bone growth occurs through a process of cellular aggregation. Cartilage cells multiply and enlarge at the epiphyseal side. Cartilage cells multiply and enlarge at the metaphyseal side. ✔✔Cartilage cells multiply and enlarge at the epiphyseal side, resulting in bone growth. Which statement is true regarding juvenile idiopathic arthritis? Serologic tests often detect this disorder. Joint pain is less severe than in the adult type. Subluxation and ankylosis of the cervical spine do not occur with disease progression. The large joints are predominantly affected. ✔✔Juvenile idiopathic arthritis primarily affects the large joints; the small joints are unaffected. Which comorbidity may Paget disease exhibit as? Sinding-Larsen-Johansson syndrome Osgood-Schlatter disease Kohler disease Legg-Calvé-Perthes disease ✔✔Paget disease may exhibit as Osgood-Schlatter disease initially. However, most cases of Osgood-Schlatter are not caused by Paget disease. Which condition causes chronic, inflammatory, recurring, scarring of the pilosebaceous follicular ducts? Acne vulgaris Lichen planus Acne rosacea Hidradenitis suppurativa ✔✔Hidradenitis suppurativa causes chronic, inflammatory, recurring, scarring of the pilosebaceous follicular ducts. Which pathogen is found on mucous membranes, on the skin, in the gastrointestinal tract, and in the vagina? Candida albicans Staphylococcus aureus Group A Streptococcus pyogenes Tinea pedis ✔✔Candida albicans is a yeast pathogen found commonly in the mouth, on the skin, in the GI tract, and in the vagina. Which form of dermatitis is common in infancy and childhood? Atopic Follicular eczema Stasis Seborrheic ✔✔Atopic dermatitis is the most common rash in infancy and childhood. It is a red, pruritic rash occurring commonly where the skin flexes, such as the antecubital and popliteal spaces. What is the appropriate term for a fungal infection of the scalp? Candidiasis Tinea pedis Tinea capitis Tinea corporis ✔✔Tinea capitis is a fungal infection of the scalp. A newborn child has a solitary purplish lesion on the head that looks like a spongy mass. Which diagnosis is supported by this type of lesion? Salmon patch Port-wine stain Cavernous hemangioma Strawberry hemangioma ✔✔A cavernous hemangioma is a benign purple vascular tumor consisting of a collection of blood vessels that form a lesion.