ABSTRAK
Latar Belakang : Bayi makrosomia  > 4000 gram beresiko terhadap kematian pada masa perinatal. Angka kejadian bayi makrosomia di RSUD Pandan Arang Boyolali tahun 2014 sebesar 5,67 %. Tujuan untuk mempelajari dan memahami asuhan kebidanan pada kasus bayi baru lahir dengan makrosomia di RSUD Pandan Arang secara komprehensif.
Metode:Observasional deskriptif dengan pendekatan Studi Kasus. Subjek penelitian Bayi Ny. R dengan Makrosomia di Perinatologi RSUD Pandanarang. Pengambilan data melalui wawancara,observasi langsung dan studi dokumentasi rekam medik. Analisis data secara deskriptif berdasarkan 7 langkah varney dan SOAP.
Hasil: Ibu mengatakan telah melahirkan secara SC dengan riwayat keturunan bayi besar. Berat bayi badan 4200 gram dan kulit kemerahan. Bayi diletakan di inkubator dengan suhu 330 C, observasi vital sign , observasi intake dan output, tali pusat dirawat dengan hasil tali pusat kering, pengecekkan GDS. Hasil asuhan kondisi bayi baik, reflek baik, menyusu kuat,bayi tidak  hipoglikemi GDS 53 mg/dl dan bayi tidak mengalami tanda hipokalsemi dan hiperbilirubin.  
Simpulan:Bayi Ny. R umur 2 jam dengan makrosomia dilakukan penatalaksanaan selama 4 hari dengan hasil keadaan umum baik. Kesenjangan yaitu tidak dilakukan  pemeriksaan laboratorium hipokalsemi dan hiperbilirubin, Bayi di beri PASI, observasi vital sign dan pengecekkan GDS.
Kata kunci : Asuhan Kebidanan, Bayi Baru Lahir, Makrosomia
ABSTRACT
Background : The newborn with birth weight more than 4,000 gram have a mortality risk in the gestational age. The macrosomia infant incidences at the aforementioned hospital in 2014 reached 5.67 %.Objective: To study and understand the midwifery care on the newborn with macrosomia comprehensively.
Method: This research used the observational descriptive research method with the case study approach. Its subject was the infant of Mrs. R with macrosmia. The data of research were collected through in-depth interview, direct observation, and content analysis and descriptively analyzed by using Varney’s Seven Steps and SOAP.
Result: Mrs. R. gave birth through C-section with high prenatal growth rate history. The weight was 4,200 gram, the skin was reddish, and the infant was treated with 330C incubator with observations on the vital signs and intake and outtake. The umbilical cord was treated until it was dry. The random blood sugar was also examined. After the treatment, the general conditions and reflexes were good, the infant suckled strongly, the random blood sugar was 53 gr/dl, and no hypocalcaemia, hyperbilirubinemia and hypoglycemia were present.  
Conclusion: The general conditions were good. However, laboratory examinations of hypocalcaemia and hyperbilirubinemia, vital signs, and random blood sugar were not done. The infant was given breast milk substitute.
Keywords: Midwifery care, newborn, macrosomia