Respiratory Flashcards
digital clubbing
sign of hypoxia - proliferation of connective tissue between nail matrix and all the distal phalanx
cyanosis
desaturated Hb or Hb O2 saturation (hypoxemia)
atelectasis
loss of lung volume, caused by collapse of expanded lung tissue - usually absence o f breath sounds in affected lung field
obvious cartilage (cells)
pseudostratified columnar + goblet cells
partial cartilage (cells)
more columnar less pseudostratified cells than obvious cartilage
bronchiole (cells)
cuboidal epithelium + clara cells; goblet cells, no cartilage just smooth muscle
bronchi
partial cartilage
trachea
obvious cartilage
trachea
obvious cartilage
compression
collapse of lung tissue caused by direct physical compression
contraction
fibrotic retraction of lung
cardiogenic causes of pulmonary edema
mitral stenosis or insufficiency OR left ventricular failure
non-cardiogenic causes of pulmonary edema
decreased plasma oncotic pressure, lymphatic blockage, OR volume overload (kidney failure; drugs/toxins; infections; ARDS; iatrogenic)
non-cardiogenic causes of pulmonary edema
decreased plasma oncotic pressure, lymphatic blockage, OR volume overload (kidney failure; drugs/toxins; infections; ARDS; iatrogenic)
secondary lung cancer
cancer metastasized to the lung
primarily from bladder, breast, colon, kidney, neuroblastoma, prostate, and soft tissue sarcoma
histological characteristic of secondary lung cancer
“popcorn” metastatic nests/lesions
pancoast tumor
cancer of the lung apex - cause compression of brachial plexus, cervical sympathetic plexus, recurrent laryngeal nerve, and superior vena cava.
compression of superior vena cava
swelling of face, head and neck veins
compression of recurrent laryngeal nerve
hoarseness of the voice
compression of cervical sympathetic plexus
horner syndrome
horner syndrome
miosis, anhidrosis, enopthalmos, ptosis
small cell lung cancer
“oat cell” -highly malignant, anaplastic, small, dark blue cells, with scarce cytoplasm
non-differentiated, high affinity to blue stain
paraneoplastic syndromes
paraneoplastic syndromes
cancer cells secrete hormones of adrenal gland symptoms associated with hormones
-ectopic ACTH, inappropriate ADH-
paraneoplastic syndromes
cancer cells secrete hormones of adrenal gland symptoms associated with hormones
-ectopic ACTH, inappropriate ADH-