PEM Flashcards
PEM
most outstanding?
energy deficiency
Marasmus
severe wasting
slower onset / better adapt
Kwashiorkor
Edematous PEM
Generally w/o wasting
Protein deficiency (+ metabolic stress + MN deficiency/imbalance)
Rapid onset “mal-adaption”
pure caloric deficiency
starvation
cachexia
associated with inflammatory or neoplasm
not reversed by feeding alone
sarcopenia
subnormal amount of skeletal muslce w/o weight loss
% Global Underweight Stunted Wasted Malnutrition related deaths
20
26
8
45
Who is more at risk for marasmus and who is more at risk for kwashiorkor
marasmus - 0-12 mos
Kwash - 12-24 mos
Underweight =
> 2SD below median (50%)
<3rd% for age
Stunting =
Length for age
<2 Z score
< 3 Z score severe
Wasting
Weight relative to length % IBW 80-89 mild 75-79 moderate <75 severe
OR
BMI <18
severe <16
Fuel utilization during starvation - shifts?
glucose down
Ketones up
FA up
Marasmus response to starvation
decrease BMR - hypotention/hypothermia/bradycardia
Normal response to starvation - muscle - brain - liver - kidney
muscle - increased utilization of TGs/FAs - decreased protein degradation
brain - increased ketones
liver - gluconeogenesis
kidney - decreased urea production (by liver) and excretion
Normal response to starvation
endocrine
decreased insulin and thyroid
increased Epi and cortisol
Normal response to starvation
GI and heart
mucosal atrophy
decreased motility and secreation
heart - decreased CO
Major consequence of normal response to starvation
decreased physiologic responsiveness to stress
Kwashiorkor -
protein deficiency with adequate energy
abnormal response!!
Kwashiorkor characteristic finding?
Hypoalbuminemia and edema
Kwashiorkor - insulin and FA change?
increased insulin
decreased lipolysis
increased hepatic FA synthesis –> Fatty enlarged liver
Signs of kwashiorkor
misery edema - moon facies hepatomegaly erythematous hyperpigmentation dry brittle hair
Use Plus Signs+++ Marasmus vs Kwashiorkor Weight loss loss of muscle loss of fat edema psych change anorexia hepatomegaly infections diarrhea skin changes hair changes
WL \++++ ++ LM \++++ + LF \++++ + Edema - ++++ Psych \++ ++++ Ana \+/- ++++ Hepatomegaly - ++ infections \++ ++++ diarrhea \+++ +++ skin - ++ hair \+/- ++
Principles of management of PEM - esp Kwashiorkor
GO SLOW
Resolve associated life threatening conditions (infections)
Restore nutrition slowly
Refeeding syndrome
Results from rapid shift from catabolic to anabolic
fluid shift - HF