Renal — Flashcards

Flashcard 371: What is the normal range of CSF: Cell count?

Answer: From 0 to 5 mm3

Flashcard 372: What is the normal range of Thyroid iodine (123I) uptake?

Answer: 8–30% of administered dose at 24 hours

Flashcard 373: What is the normal range for serum intact parathyroid hormone (iPTH)?

Answer: 10–65 pg/mL

Extra: Intact PTH (iPTH) is the primary assay used clinically. N-terminal and C-terminal fragments also exist but are less clinically significant; C-terminal fragments are cleared by the kidneys and may be falsely elevated in patients with chronic kidney disease (CKD).

Flashcard 374: What is the normal range for 24-hour urinary potassium excretion?

Answer: Varies with dietary intake (typically 25–125 mEq/24h)

Flashcard 375: What is the normal range of Osmolality, serum?

Answer: From 275 to 295 mOsmol/kg H2O

Flashcard 376: What is the normal range of urine chloride?

Answer: Varies with dietary intake (typically 110–250 mEq/24h)

Flashcard 377: What is the normal range of Calcium, serum (Ca2+)?

Answer: From 8.4 to 10.2 mg/dL

Flashcard 378: What is the normal range of Urine: Osmolality?

Answer: From 50 to 1400 mOsmol/kg H2O

Flashcard 379: What are the effects on osmolarity, ICF, and ECF in the following conditions? - Acute gastrointestinal hemorrhage - Adrenal insufficiency - Diabetes insipidus - Hypertonic saline infusion - Primary polydipsia

Answer: - Acute gastrointestinal hemorrhage: ECF decreases, no change in ICF, no change in osmolarity (iso-osmotic volume contraction). - Adrenal insufficiency: Low ECF, high ICF, and low osmolarity (due to loss of NaCl). - Diabetes insipidus: Low ICF, low ECF, and high osmolarity (due to loss of free water). - Hypertonic saline infusion: Low ICF, high ECF, and high osmolarity. - Primary polydipsia: High ICF, high ECF, and low osmolarity.

Flashcard 380: When the thyroid gland is stimulated, iodinated thyroglobulin is _____ into the follicular epithelial cells

Answer: endocytosed