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A shortage or insufficiency. The amount by which federal Income Tax due exceeds the amount reported by the taxpayer on his or her return; also, the amount owed by a taxpayer who has not filed a return. The outstanding balance of a debt secured by a mortgage after the mortgaged property has been sold to satisfy the obligation at a price less than the debt.


noun absence, dearth, defect, deficit, destitution, failing, failure to comply, falling short, fault, faultiness, flaw, foible, impairment, imperfection, inadequateness, incompleteness, incompletion, insufficiency, lack, loss, meagerness, need, nonfulfillment, nonperformance, omission, paucity, penury, poverty, privation, scarcity, short supply, shortage, shortcoming, sparsity, ullage, want, weakness
Associated concepts: deficiency assessment, deficiency bill, deficiency decree, deficiency judgment, deficiency tax, innome tax deficiency, liability for deficiency, mental deficiency, notice of deficiency, recovery of deficiency, tax deficiency
See also: absence, dearth, defect, deficit, delinquency, disadvantage, failure, fault, flaw, foible, frailty, handicap, insufficiency, mediocrity, need, omission, paucity, poverty, vice
References in periodicals archive ?
Short-term small-dose intravenous iron trial to detect functional iron deficiency in dialysis patients.
The functional iron deficiency observed in healthy individuals treated with r-HuEPO is associated with early and significant changes in CHr.
In their report, Thomas and Thomas (1) approach the diagnosis of ACD and functional iron deficiency by determining two hematologic gold standard factors for iron deficiency: the presence of hypochromic erythrocytes (HYPO) and a reduced hemoglobin content of reticulocytes (CHr).
The majority of patients with ESRD suffer from either absolute or functional iron deficiency, both of which can severely compromise the benefits of EPO therapy.
The triage supplement (see Figure 3) is used if the anemia manager is uncomfortable with immediately using the interventional recommendations or if the patient has had multiple complications or had been treated for functional iron deficiency with no improvement.
It is important for the nephrology nurse to understand the differentiating features between functional iron deficiency and RE blockade because a diagnosis of these conditions cannot be based solely on laboratory parameters (see Table 4).
The ratio of transferrin receptor to ferritin displays an inverse linear relationship to iron status, covering the spectrum from usual iron stores in health to substantial functional iron deficiency [25, 26].
Patruta, Edlinger, Sunder-Plassman, and Horl (1998) showed that neutrophil function is mildly impaired in patients with serum ferritin values between 100 and 350 ng/mL, but impairment increases markedly in patients with functional iron deficiency (a serum ferritin level in excess of 650 ng/mL and a TSAT level below 20%).
The authors conclude that since iron indices are not sensitive for functional iron deficiency, a trial of IV iron is necessary to exclude iron deficiency anemia as a cause of a poor response to rHuEPO.
There are two kinds of iron deficiency: absolute iron deficiency denotes an insufficient total body store, whereas functional iron deficiency involves a relative inaccessibility of otherwise adequate total body iron stores.
This is called functional iron deficiency and has been reported to develop in approximately 40% to 60% of patients who were treated with rEPO (Mittman et al.
In contrast, functional iron deficiency results when not enough iron from iron stores is released for erythropoiesis, which frequently occurs during rEPO therapy.

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